i ./ fiiiiiiiiinii117440 DALLAS PARKWAY SUITE 204 DAlLAS, TEXAS 75287 972'248·3006 FAX 972·248·3855 IinGlnii=llnG October 12, 2000 Mr, Ttm C. Pierce, P.E. Assistant City Engineer Town of Addison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Arapaho Road Alignment! Access Study Review Dear Mr. Pierce: Per your request, Lee Engineering has performed a review of the Alignment Study Report for Proposed Arapaho Road Extension prepared by HNTB. The recommended configuration ofArapaho Road from the HNTB report includes an overpass over Midway Road with no connection provided for traffic to interchange between Arapaho Road and Midway Road. The primary purpose of this review was to identifY connection alternatives and determine ifa connection between Arapaho Road and Midway Road would be practical and would allow the Arapaho extension to be more fully utilized. Based on our review, a connection would increase the utilization ofthe Arapaho extension. The connection would also impact local properties and could negatively impact traffic operations along Midway Road in the area. STUDY APPROACH In reviewing the Alignment Study and the recommended configuration for Arapaho Road the following key steps were taken: I. Reviewed study reports, 2. Reviewed background data, 3. Collected additional data as needed, 4. Identified and assigned potential diverted trips, 5. Analyzed operations with connections, 6, Eliminated connection alternatives that would negatively impact traffic operations, 7. Estimated total diversions of acceptable movements, and 8. Evaluated alternative connection configurations, This approach was somewhat iterative as total diversions were first estimated and then individual movements were eliminated as connection alternatives were determined to be impractical. PREVIOUS REPORTS As a part of the previous study conducted for this interchange, traffic projections for the Arapaho Road extension were made based on travel demand model runs completed by the North Central Texas Council of Governments (NCTCOG). These projections indicate that without any connection between Arapaho Road and Midway Road the Arapaho extension is expected to carry 13,000 vehicles per day. With the various connection alternatives considered the NCTCOG projection ranged from 6,000 to 28,000 vehicles per day. It was assumed in conducting the analysis that the projected volume of 13,000 vehicles per day on the Arapaho extension developed by NCTCOG with no connection to Midway Road is reliable. The underlying data provided by NCICOGfor the various connection alternative was reviewed. We determined that a better estimate offuture traffic volumes on the Arapaho Road extension with some form of connection in place could be made by reviewing existing count data at area intersections. This review would focus on turning movement volumes that would potentially use the connections provided. DATA COLLECTION A data collection plan was devised in an effort to better estimate the number oftrips that would be diverted to the Arapaho extension. The area roadway network and area intersections were reviewed to determine the paths from which traffic could be expected to utilize a connection at Midway to divert to the new Arapaho extension. Peak period turning movement counts were collected at the intersections of Beltline at Midway and Beltline at Marsh. These counts and the area roadway network are presented in Figures IA, IB, and 1 C. This sampling of area intersections served as a basis for estimating diverted traffic volumes. POTENTIAL DIVERTED TRIPS Estimates were made ofthe percentages of existing turning movements from adjacent intersections that could be diverted to the new Arapaho Road extension if all possible movements were accommodated in the connection. These percentages, summarized in Table 1, were reviewed with Town stafffor concurrence. The percentages were then applied to the existing volumes to generate estimates oftrips that could potentially be diverted ifa connection were provided at Arapaho Road and Midway Road. These estimates and the resulting total intersection volumes for the potential interchange ofArapaho Road and Midway Road are shown on the schematic drawing ofthe interchange in Figures 2A, 2B, and 2C. lJ.I c 􀁾􀀠1---...., , m <: I pootJ ADMPIV'j LlS)oV'jeUDl Figure IB Beltline at Midway and Marsh Intersection Volumes (Noon Peak Hour) -0 o o il: f-----... '"s :;::; 1--. '" LO Signalized connections with the grade separation would allow full utilization of the interchange, but would increase system wide delays and would significantly delay ramp traffic. );;> With the grade separation, unsignalized connections would have the least impact on traffic along Midway, but would also not allow as much traffic to utilize the interchange as compared to the signalized altematives. );;> Increased adverse affects to adjacent properties as a result of construction of the onfoff ramps. HNTB was asked to prepare a plan view of the intersection, with ramps, to show the impact on adjacent properties, and to prepare an estimate of the increase in construction costs due to the ramps. As a result of onfoff ramp construction it is estimated that project costs would increase by $5 million to $8 million due to ramp construction and additional property acquisition. Therefore, after reviewing the traffic engineering study prepared by Lee Engineering and increased costs, including the impact to the affected properties, it is staff's recommendation to stay with the Original HNTB plan of a bridge over Midway Road with no connection to Midway Road. 􀁦􀁾􀀮􀀠17440 OA1.l.AS P_A'f SUJTE204 OA1.l.AS. TEXAS 75287 972·248.3006 FAX 972·248'3855 October 12, 2000 Mr. Inn C. Pierce, P.E. Assistant City Engineer Town ofAddison 16801 Westgrove Drive Addison, Texas 75001·9010 Re: Arapaho Road Alignment! Access Study Review Dear Mr. Pierce: Per your request, Lee Engineering has performed a review of the Alignment Study Report for Proposed Arapaho Road Extension prepared by HNTB. The fllCommended configuration ofArapaho Road from the HNTB report includes an overpass over Midway Road with no connection provided fOf traffic to interchange between Arapaho Road and Midway Road. The primary purpose ofthis review was to identifY connection alternatives and detertnine ifa connection between Arapaho Road .and Midway Road would be practical and wouid allow the Arap;lho extension to be more fully utilized.' . Based on our review, a connection would increaSe the utilization ofthe Arapaho extension. The connection would also impa.ct 10caJ propertieS and could negatively impact tqdIicoperations along MIdway Road in the area. .,' . . . -. -'. .... t· STUDY APPROACH In reviewing the Alignment Study and the recommended configuration for Arapaho Road the following key steps were taken:' . 1. Reviewed study reports, 2, Reviewed background data, .: . 3. Collected additional data as needed, 4. Identified and. assigned pot,ential diverted trips, 5. Analyzed operations wit.h connections, '. _ 6. Eliminated connection aliernatives that would negatively impact traffic operations, .. 7. . Estimated total diversions ofacceptable movements, and '. 8. -Evaluated alternative corulectibn configurations, . . , ." .""i !• _ ".",' __._.____ • ______._. __________.'.'M•• -',. 􀁾􀀠. " c This approach was somewhat iterative as total diversions were first estimated and then individual movements were eliminated as connection alternatives were determined to be impractical. PREVIOUS REPORTS As a part ofthe 􀁰􀁲􀁥􀁶􀁩􀁯􀁾􀁳􀀠􀁳􀁾􀁤􀁹conducted for this interchange, traffic projections for the Arapaho Road extension were madebased on travel demand model runs completed by the North Central Texas Council of Governments (NCTCOG). These projections indicate that without any connection betweep Arapaho Road and Midway Road the Arapaho extension is expected to carry 13,000 vehicles per day. With the various connection alternatives considered the NCTCOG projection ranged from 6,000 to 28,000 vehicles per day. It was assumed in conducting the analysis that the projected volume of 13,000 vehicles per day on the Arapaho extension developed by NCTCOGwith no connection to Midway Road is reliable. The underlying data provided by NCTCOG for the various connection alternative was reviewed. We determined that a better estimate offuture traffic volumes on the Arapaho Road extension with some form of connection in place could be made by reviewing existing count data at area intersections. .. This review wQuld focus on turning movement volumes that would potentially use the connections provided. .. DATA COLLECTION A data collection plan was devised in an effort to better estimate the number oftrips that would be diverted to the Arapaho !;lXtension. The area roadway network and area intersections were reviewed to determine the paths from which traffic could be expected to utilize a connection at Midway to divert to the new Arapaho extension. Peak period turning movement counts. were collected at the intersections of Beltline at Midway and Beltline at Marsh. These counts and the area roadway network are presented in figures IA, lB, and IC. This sampling ofarea intersections served as a basis for estimating diverted traffic volumes. ' . . f . . '.POTENTIAL DIVERTED TRIPS Estimates were made ofthe percentages percentages ofexisting turning movements from adjacent intersections that could be diverted· to the riew Arapaho Road eXtension':if all possible movements were accommodated in the connection. These percentages, summarized in Table 1, were reviewed with Town stafffor concurrence. . The percentages were then applicid to the existing volumes to generate estimates oftrips that could potentially be diverted ifa connection were provided at Arapaho Road and Midway Road. These estimates and the resulting total intersection volumes for the potential interchange ofArapaho Road and Midway Road are shoW]] on the schematic draWing ofthe interChange in Figures 2A, lB, and 2C. . 1 , . ' .., ( AOMJlOl 1.!l.J0N SOliDO w w -' « 0 III -IS1!I 0 f-f0 Z auo1 .l!SJOIi'j .,, . ·' Figure 18 Beltline at Midway and Marsh Intersection Volumes (Noon .Peak Hour) w 􀁾􀀠U til o l-Io Z , ' , I ' -0 o o OCj---""-r-_---..., .!;; "" 􀁉􀀭􀀭􀀭􀁾0; ID · ' ' Figur e Ie· Beltline at Midway and Marsh Intersection Volumes (PM Peak Hour) NOT TO SCALE '" '" :g L 66 (AlJ 􀁾..23 (Fl Arc aho Rood .' ; (Fl 60J t r (BJ 53,... t<) l􀁾􀁾􀀠". .. XX -Estimated· Volumes' CAl -Level6f Service; 'Figure 2A Arapaho/Midway Intersection with Ramps (AM Peak Hour) NOT TO SCALE r", 􀁾􀀠L 66 (AlJ "1 r 26 (Fl t <{) n <{) 0'1 0'1 '9 + L... . ". Arc ·aho Rood· < ", ," : " .• XX: -Estimoted Volumes ;, tAl "1 Levelof Service Figure 28 Arapaho/Midway Intersection with Ramps (Noon Peak H9ur) •• ...'--------........􀀭􀀮􀁾􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭NOT TO SCALE ..... ::J 􀁾􀀠L 77 (8) ..J 1r 2HF) Ara aha Road .. ; , '. 􀁾􀀠;, , .XX Estimated Volumes CAl'-Levelof Service Figure 2C 􀁁􀁾􀁯􀁰􀁯􀁨􀁯􀀯􀁍􀁩􀁤􀁷􀁯􀁹􀀠Intersection with Romps (PM ;Peok Hour> . . .. Table 1. Tuminl!: Movement Diversions Existing Movement Movement Diverted To Percentage Diverted Southbound Right turn at MidwaylBeltline Southbound Right tum at Midway!Arapaho 40 I Southbound Left turn at MidwaylBeltline Southbound Left turn at Midway!Arapaho 40 Eastbound Left turn at MidwaylBeltline and Northbound Right turn at •MarshlBelt1ine Eastbound Left turn at • Midway! Arap8.hoI . 25 Northbound Left turn at MidwaylBeltline Northbound Left turn at Midway!Arapaho 40 Northbound Right turn at MidwaylBelt1ine Northbound Right turn at Midway!Arapaho 40 Westbound Left turn at MidwaylBeltline Westbound Left turn at Midway!Arapaho 10 Eastbound Right turn at . MidwaylBeltline and Southbound Left tum at MarshlBeltline Eastbound Right tum at Midway! Arapaho. , 25 Westbound Right turn at . MidwavlBeltline Westbound Right t)Jrn at Midwav!Araoaho ; • ;25:.: " 􀁾􀀺􀀻:; . i . i . 􀁾􀀠,INTERSECTION OPERATIONS Two prirriary alternative configurations were tested. One alternativeincluded an at-grade intersection . betwe(jn Arapaho Road and Midway Road. The o$er alternative included a grade separation and ramps extending from Arapaho Road to intersect with Midway Road. At-grade intersection ... {.; The first alternative tested was an at-grade intersection connection between Arapaho Road and Midway Road. This intersection was assumed to.be signalized and coordinated ;..nth the existing signli! at Beltline Road atMidway Road. Analyseswere conducted for existing conditions, conditions with:the currently proposed grade separation, and for an at-grade intersection between Arapaho and Midway.; The results ofthese analyses are summanted in Table 2. :.. . . : .. .:' ,.. Table 2. At-I!rade Intersection ODerations Beltline at Midway .-:I AM Noon PM IArapaho at Midway j' AM I Noon ! PM IntersectionlPeak Hour With At-gradeExisting WithGTade Conditions· ConnectionSeparation Level of Service (Total Vehicle Delay) D (66 􀁾􀁥􀁨􀁾􀁨􀁲􀁳􀀩􀀠D (60 veh-hrs) E (120 veh-hrs) N/A N/A N/A C (42 veh-hrs)D (55 veh-hrs) D (47veh-hrs) D (55 veh-hrs) D (67 veh-hrs) D (70 veh-hrs) C (32 veh-hrs) N/A C (30 veh-hrs) N/A C (45 veh-hrs)N/A After reviewing these analyses it was detennined that while the intersections would operate at acceptable levels of service, providing an at-grade intersection with a traffic signal at this location would have a significant impact on total system delay and travel times on Midway Road and on the Arapaho Road extension. As can be seen, delays at the Beltline!.M:idway intersection will be reduced under either alternative. This is due to the reduction in through traffic on Beltline Road. As can ;Uso be seen, the total system delay would increase significantly with: the addition of the signalized intersection of Arapaho at Midway. Total system delays obtamed by adding the total delays at each intersection would increase from 55 vehicle-hours per hour to 74 vehicle-hOurs per hour in the 'AM peak, from 55 to 77 in the 􀁾􀁯􀁯􀁮􀀠peak, and from 70 to 112 in "\he PM peak i , . . • • • 􀁾􀀻􀀠¥ -,} A 􀁲􀁥􀁶􀁩􀁾􀀠of delays to individual mbVeh1ents showed that during the time periods analyzed, 􀁴􀁨􀁾􀀠atgrade connection with a sipwould have minimal impacts ontravel times for southbound Midway; however, northbound Midway travel times would be increased by as much as 21 seconds per vehicle. Further review revealed thai travel times on eastbound Arapaho for vehicles traveling from Marsh Lane to Addison Road during the hours analyzed would increase fron) approximately 130 seconds to between 146 and 162 seconds. This represents an increase ofbetween i9 and 24 percent. Westbound .travel times would 􀁩􀁮􀁣􀁲􀁾􀁳􀁥􀀠by between 22 and 38 seconds. ; A summary ofthe measures ofeffectivenesscal culated in this analysis is presented in a table attached to this letter. These measures of 􀁥􀁦􀁦􀁾􀁶􀁥􀁮􀁥􀁳􀁳􀀠itidude total stops, fuel consumption, and vehicle emissions. As can be seen, all oftheseimeasures for the grade seplltatio/l alternative are significantly better than the at-grade intersection alternative. . '. ' ; •• Another complication that would effect a signalized intersection of Arapaho and Midway is the proximity ofthe rail road tracks. Any time a train crosses Midway, the signal at Arapaho would be preempted and coordination along Midway between Arapaho and Beltline would be interrupted. Grade Separation with SignalizedRamp Connections . . . The grade separated alternative was first tested with the ranip intersections with Midway controlled by traffic signals. Projected traffic volumes at these intersections shown in figures 2A, 2B, and 2C were used in this analysis. Signal timing plans were developed for the two intersections to provide coordinated operations with the existing signal at Beltline at Midway. The results ofthese analyses are summarized in Table 3. Again these results were compared to existing conditions and conditions with a grade separation and no connections to Midway. As can be seen, operations at each ofthe intersection will be at acceptable levels of service. The additional total system delay (the sum of the total delay at each intersection) introduced by the addition ofthe signalized ramp connections is 16, 13, and 24 vehicle hours in the AM, Noon and PM peak hours respectively. The signal control will significantly delay the ramp movements. To maintain some level ofprogression on Midway, the phase time for the ramp connections was limited to 20 seconds out ofthe 120 second cycle. This will adequately serve the ramp volumes, but will also require some ramp traffic to stop and wait up to 100 seconds for a green indication. Tahie3. Signabzed Ramp ConnectlOn oJperations I IntersectionlPeak Hour Existing With Signa1izedWith Grade i • Conditions . Separation Ramp Connections · Beltline at Midway . Level of Service (Total Vehicle Delay) . :; D(66 vehchrs): AM D (55 veh-hrs) I C (43 veh-hrsY . C (46 veh-hrs)Ip (60 􀁶􀁥􀁨􀁾􀁨􀁲􀁳􀀩􀀠'.. . N:oon D (55 veh-hrs) ,":; $ PM . D (70 veh-hrs) D (66 veh-hrs)E (120 veli-hrs) Eastbound Arapaho at Midway B (11 veh-hrs)N/A NlA'AM Noon . N/A B (9 veh-hrs) . I·.N/A ··PM B (10 veh-hrs) . Westbound Arapaho at Midway AM N/A· N/A" . N/A ,C (17 veh-hrs)' N/A . "Noon N/A C (13 veh-hrs);. N/A • It PM C (I8 veh-hrs) N/A N/A 􀀮􀁾􀀧􀀠." . Queue lengths were also reviewed under the signalized ramp connection scenario. This review revealed that the southbound queue in the AM peak hour was found to be the most critical. Southbound queues in the AM peak hour average over 450 feet in length with peak queue lengths of over 500 feet. The eastboundramps will intersect Midway approximately 650 feet north of Beltline Road. While the queue does not exceed the storage available, 􀁴􀁨􀁩􀁾􀁬􀁥􀁹􀁥􀁬􀀠ofqueuing from the Beltlineintersection may interfere with operations at the ramp connections.. Continuing trafficvolume growth in the future may also result in longer queues. ., .' A summary ofthe measures of effectiveness calculated in this analysis is also presented in a table attached to this letter. ,Again, these measures ofetrectiveness include total stops, fuel consumption, and vehicle emissions. These measures for the grade separation alternative without connections are better than the signalized connection alternative. Another complication that would effect the signalized connections between Arapaho and Midway is the proximity ofthe rail road tracks. Any time a train crosses Midway, the signals at the Arapaho connections would be preempted and coordination would be interrupted. Grade Separation with Unsignalized Ramp Connections The other grade separation alternative tested utilized unsigna!ized ramp connections to Midway. Capacity analyses were conducted for each intersection using the Highway Capacity Software. The results ofthese analyses are presented in Figures 2A, 2B, and 2C and are summarized in Table 4. Table 4. Capacity Analysis Results Intersection \: .. Movement AM Peak Level of Service Noon Peak PM peak : :1Vndwayat i W􀁤􀁾􀁴􀁢􀁯􀁾􀁮􀁤􀀠Rani:ps . . : Westbound Right Westbound Left Northbound Left A F E A:· F D B F D . i . Eastbound Right B A. A : Midway at , Eastbound Ramps . ., , • Eastbound Left .Southbound Left F B F C F F As can be seen, several movements would operate at unacceptable le\telspfservice (E or F). In an .effOrt effOrt to ensure efficient traffic operation's on Midway, those movements that are projected to operate at unacceptable levels of service were assumed to be prohibited. 􀁉􀁮􀁴􀁥􀁲􀁾􀁥􀁣􀁴� �􀁯􀁮􀀠volumes Were then adjusted􀀢􀁴􀁯􀀬􀀻􀁲􀁥􀁦􀁬􀁾􀁣􀁴􀀠the prohibition of these movements. The intersections were analyzed with the' adjust¢; '.'); uxro:, 􀁊􀀱􀀰􀁾􀀰􀁦􀀮􀀠C\, ::l,)!'.lUi\._ ,,\.\ 􀁕􀁉􀁁􀁬􀀡􀁾􀀡􀀢􀁔􀁃􀁜􀀭􀁟􀀠􀁾􀁃􀀬􀀠,-;r,\Rtf.jTn;.;, n', 01:(>\(.0, It !L 􀁅􀁌􀁨􀀡􀀺􀀧􀁾􀀮􀀠\\\, LUH'Jre,_:>1. n \1;(J!\.fH IX l!AIITI'O\!ll CL lin!,,!'\);. 1'\ l;;<; ,\lltMI fL :.mSC\!i!.:ErL Wt \11;';XfAI'qLb \1', 􀀧􀁩􀁜􀁾􀁉􀁬􀁜􀁉􀁕􀁌􀀠'1:"_ ).C\\ ,!O!(j.., :-;'L 􀀨􀀩􀀬􀁜􀁉􀀧􀀻􀀧􀁾􀁜􀀧􀀡􀀩􀀬􀀠G, c:r:,t"lIQV/" ny 0).._ <>1'.,\',1>' " ,,\flH\XIJ j'\H;';, 􀀻􀀮􀀻􀁾􀀮􀀠H.\\l,W-r,; Hl'fT!N(, 1',\, rOl!fL\C\lf "IE, ldlUC,1I ),,' ,",\1.\ ''''bY un 1 r ">.\'\' ,\,,1'0';'" ;X ;.,," 􀀡􀀱􀁦􀀻􀁩􀀧􀁁􀁉􀁉􀁊􀀩􀀡􀁾􀀧􀀩􀀬􀀠c· \ "LA ,'Cd, W.\ __ ( 1·,:'1\,\1<) ':\\1:-, 1'1 fObJ'lI).')!/TlL'>A,O",\\'IC!WfAX;; Arapaho Road Extension Midway Ramps Cost Estimate 6-0ct-OO 132 Embankment 260 Lime Treated Subgrade (6") 260 Lime 360 Flex Rein Concrete Pvmt (10") 423 Retaining Wall 450 Rail (Ty 501) 666 Ton SY SF LF LF JIM PIERCE, P.E.· {IW.. I Assistant Public Works Director (972) 45(1.2879 (972) 45(1.2837 FAX jpierce@ci.addison.tx.ns Town o(Addison 16801 Westgrove Dr. P.O. Box 9010, Addison, Texas 75001-9010 Jo-} 7-Ob 􀁗􀁁􀁾􀁾􀀠 • 􀁮􀁾􀀨􀁾􀀩􀀠 II 􀁾􀁾􀁲􀂭f/AJT8 􀁾􀁾􀂭.. 􀁾􀁾􀁾􀁾􀀠􀁴􀁾􀀠• 􀁾􀁦􀁢􀀠c.,¢ 􀀨􀀬􀁾􀀠􀁾􀁾􀁾􀁾􀀠􀁦􀁮􀁬􀀱􀁁􀀯􀁉􀀿􀀭􀁾􀂷􀀠􀀨􀁾􀀠􀁾􀁾􀁾􀁾􀀠􀁦􀁫􀀿􀀭􀁾􀀿􀀠􀁾􀀠 t Iott.. JIM PIERCE, P.E. Assistant Public Works Director (972) 450-2879 (972) 450-2837 FAX jpieree@ci.addison.tx.us Town ofAddison 16801 Westll1'ove Dr. P.O. Box 9010, Addison, Texas 75001·9010 HNTB 9726615614 10/10 '00 08:54 NO.185 01/03 \.JI:I􀁾i i-I Faxthe HIITD 􀁃􀀨􀀩􀁭􀁰􀁬􀀱􀁬􀀧􀁊􀀯􀁾􀀱􀀠Transm ittal To JamesC. PimceJr.P.E. Date October 9, 2000 Finn Fax# Town ofAddison ;t8'S? 􀀹􀀷􀀲􀀴􀀵􀀰􀁾􀀠Toter Pages Job Number 3 (Indudlng this col'llr) 25768 From Dan Becker/Angie Stoddard rgJ High Resolution rgJ Urgent Please notify sender at 972-661·5626 ifpages are missing or ift.heJ:e is any transmission difficulty. Message Attached is an estimated cost for the addition ofthe diamond interchange ramps at Midway Road to the Arapaho Rd. Extension Project. 14114 DaHas Parkway, Suite 630' Dollas, Texas 75240 Voice (972) 66I·5(j26· Fax (972) 661·5614 HNTB 9726615614 10/10 '00 08:54 NO.185 02/03 October 9. 2000 Town of Addison 16801 Westgrove Drive P.O. Box 9010 Addison, TX 75001-9010 Attn: Mr. James C. Pierce,lr., P.E., DEE ARAPAHO ROAD EXTENSION Cost Estimate for Arapaho Ramps at Midway Dear Mr. Pierce: Per our meeting on Wednesday, October 4, 2000, you asked HNTB to prepare a cost estimate for the Arapaho ramps at Midway. Attached is a sketch of the ramps and II 􀁣􀁯􀁳􀁾􀀠 estimate spreadsheet. The estimated construction cost for the ramps is $1,369,744. Should you have any questions or need any further information, please call our office. Very truly yours, HNTB CORPORATION Daniel F. Becker Enclosures DBF/AMS/tlf HNTB 9726615614 10/10 '00 08:54 NO.185 03/03 Arapaho Road Extension Midway Ramps Cost Estimate 6·Oct-oO 132 Embankment 260 Ume Treated Subgrade (6') 260 360 Flex Rein Concrete pvmt (10*) 423 Retaining Wall 450 Rail 501) 666 t:.L '. September 20, 2000 Mr. Jim C, Pierce, P.E. Assistant City Engineer Town ofAddison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Arapaho Road Alignment! Access Study Review Dear Mr. Pierce: Per your request, Lee Engineering has performed a review of the Alignment Study Report for Proposed Arapaho Road Extension prepared by HN1B. The recommended configuration ofArapaho Road from the HN1B report includes an overpass over Midway Road with no connection provided for traffic to interchange between Arapaho Road and Midway Road. The primary purpose of this review was to identifY connection alternatives and determine ifa connection between Arapaho Road and Midway Road would be practical and would allow the Arapaho extension to be more fully utilized. Based on our review, a connection would increase the utilization of the Arapaho extension, However, the increased utilization would not be enough to warrant the additional cost and right of way impacts ofmaking the connection, STUDY APPROACH In reviewing the Alignment Study and the recommended configuration for Arapaho Road the following key steps were taken: 1. Reviewed study reports, 2, Reviewed background data, 3, Collected additional data as needed, 4, Identified and assigned potential diverted trips, 5. Analyzed operations with connections, 6. Eliminated connection alternatives that would negatively impact traffic operations, 7. Estimated total diversions of acceptable movements, and 8, Evaluated alternative connection configurations, This approach was somewhat iterative as total diversions were f'rrst estimated and then individual movements were eliminated as connection alternatives were detennined to be impractical. " PREVIOUS REPORTS AB a part ofthe previous study conducted for this interchange, traffic projections for the Arapaho Road extension were made based on travel demand model runs completed by the North Central Texas Council of Governments (NCTCOG). These projections indicate that without any connection between Arapaho Road and Midway Road the Arapaho extension is expected to carry 13,000 vehicles per day. With the various connection alternatives considered the NCTCOG projection ranged from 6,000 to 28,000 vehicles per day. Itwas assumed in conducting the analysis that the projected volume oftraffic on the Arapaho extension developed by NCTCOG with no connection to Midway Road is reliable. Upon further review of the underlying data provided by NCTCOG, we detennined that a better estimate offuture traffic volumes on the Arapaho Road extension with some form ofconnection in place could be made by reviewing existing count data data at area intersections, This review would focus on turning movement volumes that would potentially use the connections provided. DATA COLLECTION In an effort to better estimate the number oftrips that would be diverted to the Arapaho extension a data collection plan was devised. The area roadway network and area intersections were reviewed to detennine the paths from which traffic could be expected to utilize a connection at Midway to divert to the new Arapaho extension. Peak period turning movement counts were collected at the intersections of Beltline at Midway and Beltline at Marsh. These counts and the area roadway network are presented in Figures IA, IB, and IC. This sampling ofarea intersections served as a basis for estimating diverted traffic volumes. POTENTIAL DIVERTED TRIPS Estimates were made ofthe percentages ofexisting turning movements from adjacent intersections that could be diverted to the new Arapaho Road extension if all possible movements were accommodated in the connection. These percentages, summarized in Table 1, were reviewed with Town stafffor concurrence. The percentages were then applied to the existing volumes to generate estimates oftrips that could potentially be diverted ifa connection were provided at Arapaho Road and Midway Roa<:\. These estimates and the resulting total intersection volumes for the potential interchange ofArapaho Road and Midway Road are shown on the schematic drawing ofthe interchange in Figures 2A, 2B, and 2C. '. -0 o o0::1----....,.._----. .. UJ -' c en "! on "'ro e, " 􀀮􀁾􀀠􀁾􀀠--'" "" . Figure lA CO Beltline at Midway and Marsh .;!;'" Intersection Volumes (AM Peak Hour) '" n '" '0 o o ct: 1-----....---. ".S; :;:; 􀁉􀀭􀀭􀀭􀁾􀀠'" (II " w > XX -Estimated Volumes 􀁾􀀠(A) -Level af Service ';;; 􀁾􀀠􀁉􀁾􀁾􀁾􀁾􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁾􀁾􀀠􀁾􀁾􀀠Arapah o/Midway Intersection 􀀮􀁾􀀠􀁾􀁬􀁅􀁮􀁇􀁬􀁮􀁩􀁩􀀢􀁬􀁬􀁮􀁇􀀠with Romps (AM Peak Hour) 􀁾􀀠Ir􀀬􀀢􀁾􀀬􀁉􀀠ngure 2A ii " NOT TO SCALE '" 􀁾􀀠L 66 (A)'" /'" '\ .J .j. + 26 (F) i t If} If}'" '" 8 AraDaho Q Road to If} 􀁾􀀠:2 .j. l..'\ r /(F) 64J t (A) 68 • ... ato a> Q <=> <=><=> '" d '" p ro '" 􀁾􀀠xx -Estimated Volumes (A) -Levelof Service 􀁾􀀠􀁉􀁾􀀺􀀺􀀺􀀺􀁾􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁾􀁾 r.d 􀁾 F;gure 28. -=== .=§ 􀁾􀁲􀁡􀁰􀁡􀁨􀁯􀀯􀁍􀁩􀁤􀁷􀁡􀁹􀀠Intersection 􀁾􀀠§lffilifllGlftllllll'lIIniG with Ramps (Noon Peak Hour) 􀁾􀀠'----__" __________________1: i ". NOT TO SCALE ,.... oo'L:2 􀁾􀁩􀀠77 (6) ..J +..-21 IF) Aro aha Rood m xx -Estimated Volumes ! (Al -Level of Service" o s= m 0􀀱􀁾􀁾􀁾􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭 􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀁾􀁆􀁾􀁩􀁧􀁾􀁵􀁾􀁲􀁥􀀻􀀺􀀲􀁾􀁣􀀱􀁾􀀠Arapaho/Midway Intersection .::l with Ramps (PM Peak Hour) $ T bl a e 1• TumlDl/: M ovement D'lVerslOns ExistingMovement Movement Diverted To Percentage Diverted Southbound Right tum at MidwaylBeltline Southbound Right tum at Midway!Arapaho 40 Southbound Left tum at MidwaylBeltline Southbound Left tum at Midway!Arapaho 40 Eastbound Left tum at MidwaylBeltline and Northbound Right tum at MarshlBeltline Eastbound Left tum at Midway!Arapaho 25 Northbound Left tum at MidwaylBeItline Northbound Left tum at Midway!Arapaho 40 Northbound Right tum at MidwaylBeltiine Northbound Right tum at Midway!Arapaho 40 Westbound Left tum at MidwaylBeltline Westbound Left tum at Midway!Arapaho 10 Eastbound Right tum at MidwaylBeltiine and Southbound Left tum at MarshlBeltline Eastbound Right tum at Midway!Arapaho 25 Westbound Right tum at MidwaylBeltline Westbound Right tum at MidwaylArapaho 25 INTERSECTION OPERATIONS Two primary alternative configurations were tested. One with an at grade intersection between Arapaho Road and Midway Road and the other with a grade separation and ramps extending from Arapaho Road to intersection with Midway Road. At-grade intersection The first alternative tested was an at grade intersection connection between Arapaho Road and Midway Road. This intersection was assumed to be signalized and coordinated with the existing signal at Beltline Road at Midway Road. Analyses were conducted for existing conditions, conditions with the currently proposed grade separation, and for an at grade intersection between Arapaho and Midway. The results ofthese analyses are summarized in Table 2. T bi 2 A ea e . t-llradintersectIon o'peratlOns InlersectionlPeak Hour Existing Conditions With Grade Separation With At-grade Connection ! Beltline at Midway Level of Service (Total Vehicle Delay) AM D (66 veh-hrs) D (55 veh-hrs) C (42 veh-hrs) Noon D (60 veh-hrs) D(55 veh-hrs) D (47 veh-hrs) PM E (120 veh-hrs) D (70 veh-hrs) D (67 veh-hrs) Arapaho at Midway AM N/A N/A C (32 veh-hrs) Noon N/A N/A C (30 veh-hrs) PM N/A N/A C (45 veh-hrs) , ! After reviewing these analyses it was detennined that providing an at grade intersection with a traffic signal at this location would have a significant impact on traffic operations on Midway Road and on the Arapaho Road extension, As can be seen, delays at the BeltlinelMidway intersection will be reduced under either alternative, This is due to the reduction in through traffic on Beltline Road, As can also be seen, the total system delay would increase significantly with the addition of the signalized intersection of Arapaho at Midway, Total system delays would increase from 55 vehicle-hours per hour to 74 vehicle-hours per hour in the AM peak, from 55 to 77 in the noon peak, and from 70 to 112 in the PM peak A review ofdelays to individual movements showed that during the time periods analyzed, the atgrade connection with a signal would have minimal impacts on travel times for southbound Midway, however northbound Midway travel times would be increased by as much as 21 seconds per vehicle, Further review revealed that travel times on eastbound Arapaho for vehicles traveling from Marsh Lane to Addison Road during the hours analyzed would increase from approximately 130 seconds to between 146 and 162 seconds, This represents an increase of between 19 and 24 percent, Westbound travel times would increase by between 22 and 38 seconds, A summary of the measures of effectiveness calculated in this analysis are presented in a table attached to this letter. These measures of effectiveness include total stops, fuel consumption, and vehicle emissions, As can be seen, all of these measures for the grade separation alternative are significantly better than the at-grade intersection alternative, Another complication that would effect a signalized intersection of Arapaho and Midway is the proximity ofthe rail road tracks, Any time a train crosses Midway, the signal at Arapaho would be preempted and coordination between Arapaho would be interrupted, Grade Separation with Ramp Connections " The next alternative tested was a grade separation with ramps connection to Midway. Under existing conditions, the southbound queue during the AM peak averages over 400 feet in length with peak queue lengths of over 500 feet. Based on these results, it was assumed that the intersections on Midway Road with the ramps from Arapaho Road would operate as unsignalized intersections. This is because the southern intersection with the eastbound ramps would be within 500 feet of the Beltline intersection. Capacity analyses were conducted for each intersection using the Highway Capacity Software. The results ofthese analyses are presented in Figures 2A, 2B, and 2C and are summarized in Table 3. Table 3, Capacity Analvsis Results Intersection Movement Level of Service AM Peak Noon Peak PM peak Midway at Westbound Westbound Right A A B Ramps Westbound Left F F F Northbound Left E D D Midway at Eastbound Right B A A Eastbound Ramps Eastbound Left F F F Southbound Left B C F As can be seen, several movements would operate at unacceptable levels ofservice(E orF). Because signalization is not an acceptable option, those movements that are projected to operate at unacceptable levels of service were assumed to be prohibited. Intersection volumes were then adjusted to reflect the prohibition of these movements. The intersections were analyzed with the adjusted volumes to ensure that all movements would operate at acceptahle levels ofservice. These analyses confirmed that the movements that would be allowed would operate at levels of service D ofbetter. TOTAL DIVERSIONS After determining which movements could and could not be accommodated at an unsignalized interchange ofArapaho Road and Midway Road, total daily diverted traffic volumes were estimated. This was accomplished by averaging the peak hour diverted volumes and assuming that this average peak hour represented an industry average of 10 percent ofthe daily volume on the roadway. The results ofthese calculations showed total potential additional traffic on the Arapaho Road extension west ofMidway Road would be 1,130 vehicles per day and 1,870 vehicles per day east ofMidway Road. These numbers represent increases ofnine and 14 percent over the projected traffic volumes on Arapaho Road without an interchange. IMPACT OF CONNECTIONS '. The ramps required to complete the connections between the Arapaho Extension and Midway Road will have a significant impact on adjacent properties. Based on our preliminary review, these ramps would require the taking of the Charter Furniture building in the southwest quadrant of the . intersection. The ramps would also take more parking area from the property on the southeast corner and eliminate the potential for providing parking for the property under the overpass structure. Due to the impact ofthese ramps, alternative connections were explored. One potential connection would utilize an open piece ofproperty west ofMidway to provide a connection between Centurion and the Arapaho extension. Upon further examination, it was discovered that this connection would only provide for eastbound and westbound to southbound and southbound to eastbound and westbound connections efficiently, This alternate connection would result in only 1,130 diverted vehicles per day west ofMidway and 1,290 vehicles per day east ofMidway. Itwas also discovered that Arapaho Road would still be on a retaining wall structure at this location. Thus, the cost of providing this connection with the retaining waH structure would be significant. CONCLUSIONS AND RECOMMENDATIONS While a connection could be made between the Arapaho Road extension and Midway Road, the resulting benefit ofincreasing the utilization of Arapaho Road would be less than 15 percent. This represents a diversion off of Beltline Road of less that 4 percent. The cost of making these connections was not estimated. However, it is apparent that the taking of additional property and the additional construction cost would be significant. For these reasons we do not believe that benefits justifY the cost ofproviding a connection between the Arapaho Road extension and Midway Road. Ifyou have any questions, please contact me at (972) 248-3006. We appreciate the opportunity to provide these services. Sincerely, Joseph T. Short, P.E. Office Manager i 􀁔􀁾􀀣􀀭􀀫􀁐􀁩􀀭􀁾􀁾􀀠 • Summary of Network Measures of Effectiveness (MOE) -_._.Measures of Effectiveness ... 􀁾􀁾􀀠Existing Conditions At-grade Alternative Grade Separated Alternative AM Noon PM AM Noon PM AM Noon PM Delay (veh-hrlhr) 66 60 120 74 77 109 55 55 70 Stops 5,342 . 5,061 7,239 6,893 6,565 8,204 4,668 4,584 5,665 Fuel Consumption (gal) 181 173 252 191 189 243 159 157 192 CO (kg) 12.64 12.09 17.62 13.35 13.21 16.97 11,09 10.97 13.39 Nox(kg) 2.46 2.35 3.43 2.60 2.57 3.30 2.16 2.14 2.60 VOC (kg) 2.93 2.80 4.08 3.09 3.06 3.93 2.57 2.54 3.10 -• August 16,2000 Mr. Jim C. Pierce, P.E. Assistant City Engineer Town ofAddison 16801 Westgrove Drive Addison, Texas 75001-9010 Re: Arapaho Road Alignment/Access Study Review Dear Mr. Pierce: Per your request, Lee Engineering has perfonned a review of the Alignment Study Report for Proposed Arapaho Road Extension prepared by HNTB. Therecornrnended configuration ofArapaho Road from the HNTB report includes an overpass over Midway Road with no connection provided for traffic to interchange between Arapaho Road and Midway Road. The primary purpose ofthis review was to determine if a connection between Arapaho Road and Midway Road would be practical and would allow the Arapaho extension to be more fully utilized. Based on our review, a connection would increase the utilization of the Arapaho extension. However, the increased utilization would not be enough to warrant the additional cost and right of way impacts ofmaking the connection. STUDY APPROACH In reviewing the Alignment Study and the recommended configuration for Arapaho Road the following key steps were taken: 1. Reviewed study reports, 2. Reviewed background data, 3. Collected additional data as needed, 4. Identified and assigned potential diverted trips, 5. Analyzed operations with connections, 6. Eliminated connections that would negatively impact traffic operations, 7. Estimated total diversions ofacceptable movements, and 8. Evaluated alternative connection configurations, This approach was somewhat iterative as total diversions were first estimated and then individual movements were eliminated as connection alternatives were determined to be impractical. STUDY ASSUMPTIONS Several key assumptions were made in conducting the analysis, These assumptions include: I. The projected volume of traffic on the Arapaho extension with 110 connection to Midway Road is reliable. 2. Any alternative will not include the installation ofa traffic signal on Midway Road to serve a connection to Arapaho. 3. Arapaho Road will pass over Midway Road, and any direct connection will be achieved by extending a ramp parallel to Arapaho Road to intersect Midway Road. Of these assumptions, the second regarding the addition ofa signal on Midway Road to serve the connection is probably the most important. The existing signalized intersection ofMidway Road at Beltline Road is at or over capacity during several hours every day. Introducing a signal on Midway Road between this intersection and the railroad tracks would create additional operational problems. While the signals could be coordinated to provide for the flow oftraflic, any signal installation would introduce more stops and delay to an already congested area. PREVIOUS REPORTS As a part ofthe previous study conducted for this interchange, traffic projections for the Arapaho Road extension were made based on travel demand model runs completed by the North Central Texas Council of Governments (NCTCOG), These projections indicate that without any connection between Arapaho Road and Midway Road the Arapaho extension is expected to carry 13,000 vehicles per day, With the various connection alternatives considered the NCTCOG projection ranged from 6,000 to 28,000 vehicles per day. Upon further review ofthe underlying data provided by NCTCOG, we determined a better estimate offuture traffic volumes on the Arapaho Road extension with some form ofconnection in place could be made by reviewing existing count data at area intersections. This review would focus on turning movement volumes that would potentially use the connections provided. DATA COLLECTION In an effort to better estimate the number oftrips that would be diverted to the Arapaho extension a data collection plan was devised. The area roadway network and area intersections were reviewed to determine the paths from which traffic could be expected to utilize a connection at Midway to divert to the new Arapaho extension. Peak period turning movement counts were collected at the intersections of Beltline at Midway and Beltline at Marsh, These counts and the area roadway network are presented in Figures 1 A, lB, and 1 C. This sampling ofarea intersections served as a basis for estimating diverted traffic volumes. ------􀀧􀀺􀀱􀂧􀂧􀂧􀂧􀁦􀁾􀁾􀁾􀂧􀂧􀁾􀁾􀁁􀁾􀁏􀁾􀁍􀁉􀁉􀁏1 lH .JoN SOliDO O >6 '6 :o ;: u ::;; N 􀁾􀀠L 66 (A)"' /0 "' \ J .j. .. 23 (F) 1 ...,t o N \ V 00 UJ Arapaho CD Road 00 􀁾􀀠"' se .j. L. (F) 60 ---.1' t r (8) 53 • ..., 0 "00 (j) 􀁾􀀠XX -Estimated Volumes j; CAl -Level of Service .Figure 2A 􀁾􀀠Arapaho/Midway Intersection with Ramps (AM Peak Hour) --NOT TO SCALE i '"I 􀁾􀀠􀁾􀀠L 66 (A) I J 1+26 (F)I ! e Arapaho Rood IF) 64 J (Al 68 t i co co co xx -Estimated Volumes 􀀱􀁲􀀮􀁩􀁾􀁾􀁾______________________________________________(A_)__􀀭􀁟􀁌􀁟􀁥􀁟� �􀁟􀁥􀁟􀁉􀁏􀁟􀁦􀁾􀁳􀁾􀁥􀁾􀁲􀁾􀁶􀁾􀁩􀁣􀁾􀁥􀁾􀁾􀁟􀀮􀁩􀀠Figure 28 1 Arapaho/Midway Intersection = with Ramps (Noon Peak Hour) 5 /'\ NOT TO SCALE "0 o o !Y "to 1§ L 77 (B)'" J .j. r 21 (F) 1 ! o '" 52 􀁾􀀠0 u. 0 0 4 1636 1453 2766 2452 5492 7321 7973 5328 6531 5725 5564 4360 4158 3640 5021 3554 1702 2098 41159 51074 47459 42853 . 48266 45312 63669Uj"""--15540 -------159-A-':-14.6E17 122 1'lo"0!1 fl.1 520! 1281 13301 9271 8739 11390 13301 1911 17% 08ll!6/99 12256 8182 10261 10143 12266 2113 21% 08ll!6/99 9644 NR NR NR 9644 9944 NlA 09101199 7685 4769 6262 4274 7698 3424 80% O9IOl/l19 8585 4625 5646 4510 8585 4075 90% 09/o1/l19 3800 2708 3516 3056 3600 744 09/02/lI9 09102/ll9 NA .. Not AoDllcable NR .. Not Recorded PaQe 2 24VOLAA1.Wl<4 11 _________________________ _ II!􀀧􀁬􀁾􀁟􀀠GENTLEMAN: WE ARE SENDING YOU 􀁾􀁣􀁨􀁥􀁤􀀠o Under separate cover via ______the following items: o Shop Drawings 0 Prints o Plans 0 Samples 0 Specifications 0 __________________________o Copy of letter 0 Change order ........􀁾􀀠ADDisoN Public Works I Engineering 16801 Westgrove· P,O, Box 144 Addison, Texas 75001 Telephone: (2141450·2871 • Fox: (214]931-6643 DATE /,; -:20 -oD I JOBNa. ATTENTION /RE; J(.Jm I'hJ ..-14/1 /IIIdll.JtUt , r I J.. L':;' I If ')..vw.. £)' 1/i PIt'}ItiY1 I I I COPtES DATE NO, DESCRIPTION I r II V(j I ../THESE ARE TRANSMITTED as checked below: o For approval 0 Approved as submitted o Resubmit _____ copies for approval 􀁾your use 0 Approved as noted o Submit copies for distribution o As requested 0 Retumed for corrections o Retum corrected prints o For review and comment 0 o FOR BIDS DUE ______________ 19·____ o PRINTS RETURNED AFTER LOAN TO US 􀁒􀁅􀁍􀁁􀁒􀁋􀁓􀀭􀁩􀀽 􀁾􀁾􀁲􀁾􀀭􀀭􀀢􀀢􀂷􀁾􀀽􀁊􀁆􀀽􀀢􀀢􀀢􀀢􀀧􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭􀀭COPYTO _________________________ SIGNED: 􀁡􀁾􀁜􀀠If enclosures are not as noted, please na;once, I __ ______________ _ HP LaserJet 3100 SEND CONFIRMATION REPORT for Printer/Fax/Copier/Scanner Town of Addison 9724502834 Jun-20·00 10:08AM Job Start Time Usage Phone Number or ID Type Pages Mode Status 960 6/20 10:06AM 1 '47" 9722483855 Send, " ...... "" " 4/4 EC 96 Completed , ____ ........"". '"""" ............... Total 1 '47" Pages Sent: 4 Pages Prlnted: 0 "'" ('-UJ-co 􀀢􀀢􀁾􀀠􀀬􀁾􀀠􀁾􀀠􀁾􀀠J fi-:L¥ -" 􀁾􀀭.............. 0Wf: AM $IHDIHG YOU IJCop;>oflet!tt 􀁏􀁬􀁊􀁴􀁬􀁤􀁡􀁲􀁾􀁣􀁯􀁷􀁲􀁜􀀧􀁬􀁡􀁟􀀭􀀭􀀺􀀺􀀺􀀭􀁟􀀱􀁴􀁈􀀻􀁾􀁵􀁥􀁭􀁲􀀮􀀠OPIrW 􀁵􀁾􀀠􀁏􀁾􀀠a , 1'ttBI! AM TflAN,UIITTID •• 􀁣􀁍􀁾beI..w; OFor...JPPl'O'ld (lAppIlMlllUGlJbmll lod o Rosllbmll ___􀂢􀀰􀀹􀁉􀁾􀀱􀀡􀀠fOt nwl'O'Ytll 􀁾yau. (jill'! a ApprtMld as mod DSubmll ___OOJllolllocdiltlllKJllon flAIl 􀁭􀀺􀀺􀁜􀀱􀁾􀀠OAlJ1umed /orCQtl'O(tl0l14 a Ralurn ___OOt'fIIIt)IOO pdnb 􀁮􀁆􀁏􀀨􀁾􀁡􀁮􀁤􀀨􀁱􀁉􀁬􀁬􀀮􀀧􀁍􀀱􀀱􀀱􀀠n o FOR atOS oue 19__ a PFllNl'S fU::TtJA.NEO AFTER I.J)PJ.I TO ti9 ........ __________________________ _ Public Works I Engineering 16801 Westgrove· P.O. Box4M-'fo/O Addison, Texos 75001-Jose h T. Short, P.E. Office Manager Date P.4 6-14-200 1(,h54AM FROM LEE ENGINEERING 9722483855 Lee Engineering Terms and Conditions March 20, 2000 Additional services as authorized by you will be performed at the following rates: Principal $16S.00/per hour Project Manager $130.00/per hour Project Engineer $IOO.OO/per hour Sr. Engineering Designer $ 9O.oo/per hour Engineering Designer $ 7S.00/per hour Technician $ 4S.00/per hour Administrative Assistant $ 6O.oo/per hour Secretarial $ 50.oo/per hour Highway travel $0. 325/mile Meals, lodging, air fares, out-of-pocket costs Reproduction $O.IO/copy TERMS AND CONDITIONS: 1. Invoices will be submitted monthly. 2. Invoices are due and payable when received. 3. Interest at the rate of 1.5 %per month will be applied to invoices not paid within 30 days of initial billing date. 4. We reserve the right to cease work on delinquent accounts. 5. Contracting party is responsible for paying all fees and expenses associated with all activities related to an engagement. Credit will be given for payments received directly from clients of the contracting party or from others. 6. The retainer fee will be credited against fee. 7. In addition to invoices rendered and interest thereon, contracting party agrees to pay any and all legal fees and costs incurred in collecting overdue accounts. 8. Rates are subject to change annually. Work performed in subsequent years will be charged at the adjusted rates. 9. Extra copies of reports will be billed at $10.00 per copy. C:110DYIOFFlCEISTANDARD.WP/) Meeting with Jody Short, Lee Engineering Project Background Previous Studies Alternatives Examined Approved Alignment Second Opinion on the Intersection ofArapaho and Midway Road Provide Preliminary Cost Estimate, Including ROW, for: Bridge Over Midway Road, WitbIWithout Ramps Underpass Under Midway Road, WitblWithout Ramps Surface Intersection With Midway Road Investigate the Impact of a Surface Intersection on: Traffic Flow on Midway Road Traffic Flow on Belt Line Road Traffic Flow on Lindberg Drive Can the Signals at the Above Intersections be Tuned Such That Level Of Service Is Not Diminished? f􀁊􀁖􀀭􀁦􀁾􀀠􀁾􀀭1-fk{ 􀁾Y' Claim #=--____ Check $ 1.290.OCJ, Vendor No. Vendor Name Address Address Ph Den I X Address Zip Code 􀁳􀁲􀁓􀁄􀀯􀁾􀀠AMOUNT TOTAL 􀁾􀀠I, alfle). aJ Finance 3033 N. 44TH STREET SUITE 375 PI-IOENrX. ARIZONA 85018 602/955-7206 FAX 602/955-7349 September 26, 2000 Invoice Number: 14404 Town of Addison 1680 I Westgrove Drive Addison. TX 75001-9010 Attn: Mr. Jim Pierce Re: Job T1145.01 Arapaho Road Alignment/Acct'SS Study Review Consulting Services from August 19,2000 through September 15,2000 Billing Group: 001 Contract Maximum: $12.000.00 Previous Billings Against Maximum: $8.000.00 Current Billings Against Maximum: $1.290.00 Balance After This Invoice: $2.710.00 Project Manager 8.00 hrs. @$130.00 !hr. $1,040.00 TOTAL LABOR $1.040.00 Outside Services Outside Service/Subconsu Itants $250.00 TOTAL OUTSIDE SERVICES $250.00 TOTAL AMOUNT DUE $1,290.00 Aged Receivables: CU RRENT 31-60 DAYS 61-90 DAYS 91-120 DAYS +120 DAYS $ 1.290.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 All invoices are due upon receipt. A late charge of 1.5% will be added to any unpaid balance after 30 days. TOWN OF ADDISON PAYMENT AUTHORIZATION MEMO .<", . . "";"; . . DATE: Claim #,=---____ Check$ . Vendor No. ' Vendor Name Address Address Address Zip Code ·Phoenlx f/-R fCSDIg-Finance 􀀶􀀰􀀲􀀱􀀹􀀵􀀵􀁾􀀷􀀲􀀰􀀶􀀠FAX 602/955-7349 August 31, 20aO Invoice Number: 14370 Town ofAddison 16801 Westgrove Drive Addison. TX 75001·9010 Attn: Mr. Jim Pierce Re: Job T1145.01 Arapaho Road AlignmentlAccess Study Review Consulting Services from July 22, 2000 througb August 18,2000 Billing Group: 001 Contract Maximum: $12.000.00 Previous Billings Against Maximum: $1.560.00 Current Billings Agsinst Maximum: $6.440.00 Balance After This Invoice: $4.000.00 Engineering Designer 6.00 hrs.@$75.00 /hr. $450.00 Project Manager 44.00 hrs.@$130.00 /hr. $5,720.00 Sr. Engineering Designer 3.00 hrs.@$90.00 /hr. $270.00 TOTAL LABOR $6.440.00 TOTAL AMOUNT DUE $6,440.00 Aged Receivables: CURRENT 31-60 DAYS 61-90 DAYS 91-120 DAYS +120 DAYS $ 6.440.00 $ 0.00 $ 0.00 $ 0.00 $ 0.00 All invoices are due upon receipt. A late charge of 1.5% will be added to any unpaid balance af1er 30 days. TOWN OF ADDISON PAYMENT AUTHORIZATION MEMO $' DATE: 2:3-60 Claim # CheckS I, 5"60,00 > Vendor No. Vendor Name Address Address f?6Denlx, Address ItR Zip Code TOTAL Ii I, 5"66 c..tc Finance 14306 N. 44TH STREET 375 PH