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Home My WebLink AboutDIAMOND SHAMROCK CORNER STORE #1100 PUD - FINAL - 14-89A - CORRESPONDENCE - TRAFFIC STUDY0 • F E L S B U R G H 0 L T & U L L E 11 I G April 17, 1989 Mr. Ted Sheppard Planning Department City of Fort Collins P.O. Box 580 Fort Collins, Colorado 80522 RE: Traffic Impact Analysis Proposed Diamond Shamrock Service Station West Elizabeth Street FHU Reference No. 89-011 Dear Mr. Sheppard: APR 181989 Felsburg Holt & Ullevig prepared and submitted a Traffic Impact Analysis on the above referenced project in March 1989. Since that analysis was prepared, the access plan for the site has changed to reflect a request of City staff to remove the proposed access on the northeast corner of the property di- recting traffic through the parking area of the CBP restau- rant. Prepared at your request, the purpose of this letter is to document the changes that this modification causes in the traffic analysis. The closure of this access does not imply any changes in either proposed land use or proposed size of the facility. Therefore, the only changes in the traffic analysis involve the reassignment of some of the traffic volumes; with this revised plan all traffic to and from the site will use the access road bordering the site on it's western edge. The attached Figures 5, 8 and 9 illustrate the revised assignments for project generated traffic and for total traffic in the two future design years. Also attached are revised Figures 10 and 11 from the previously submitted report and revised worksheets for the level of service analyses at the access road/West Elizabeth Street intersection. Because the volumes of traffic associated with this access change are relatively low, the results of the level of service analyses are not substantially different from those previously reported. The motorists making left turns out of the access road during the PM peak hour would, however, experience a lower level of service. Specializing in Transportation and Civil Engineering 5299 DTC Boulevard • Suite 400 Englewood, Colorado 80111 (303) 721-1440 April 17, 1989 Mr. Ted Sheppard • • Page Two I hope that this information provides a sufficient update of the analysis. If you have any questions, please call. Sincerely, FELSBURG HOLT & ULLEVIG Robert W. Felsburg,TP.E. 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L R I 1 I--------------------- 1CONTROL I------- ( UNC I------- I------------------- I UNC I STOP STOP I STOP STOP 1 I VOI._UME (VPH) 1 15 1 15 1 25 65 1 I5 15 1 10OLUME (PCPH) I 17 1 17 1 28 72 1 17 17 1 I C ONFLICTING FLOW 1 250 ( B90 1 117-3 445 1 1223 125 1 ICRITICAL GAP (SEC) 1 5.5 1 5.5 I 7.0 5.5 1 7.0 5.5 1 I POTENTIAL CAPACITY 1 843 ( 375 1 147 666 I 136 969 1 IPERCENT OF CAPACITY 1 2 I 4 I 11 ( 2 1 IIMPEDENCE FACTOR I 0,99 1 0,97 1 0,93 1 0,99 1 JOCTUAL CAPACITY 1 043 1------- 1 375 1 1------- 140 ------------------- 666 1 1 --------------------- 122 969 1 1--------------------- ISHARED LANES I I I -----------1 I ;HARED LANE CAPACITY I l I I IRESERVE CAPACITY 1 826 I 359 1 112. 595 1 105 952 I ILEVEL OF SERVICE I A I------- I B 1 1--------- 1------------------- D A I 1-------------------- D A I I-------..---------------- (AVERAGE QUEUE I I I I I InVERAGE DELAY (SEC) I I I I I 1 1 bur9 hio t h U1'Ieui � � • UlASIGHALIZED I11TERSECTION CAPACITY ANHLYSIu INTERSECTION. AC:CESSfEL.IZAOETH TI:I°1E PERIOD. 1990 NOON PK HR JOSS. 89-01.1. 1 F10 50 I i I I I I I v k! V I 6 7 0 6cy 1l:)0 V V I I I ( I I I I I I 95 i 04---t16 --- 19G9 I......--------- - - - - -- I I I - - -- - -- - - 11AJOR -- - -- - - - -- I ROADWAY t ------------- ----------------------- IIINOR ROADWAY --- - - - -. I t I ( 35 NP1.1 j ( --- __-.--__-___--__-..---.__._____._-_.._ (2-WAY STOP) I I ..___._------------------ I I fil-,PROACH ____._.._---__.---- 1 EB I t WB i ------___- NES I __________--___- SE I ---- -.._ 111OVEMENT I I._ I L I ______ L R I t- L ------- .---- R I -- - - - --- I I- - - - - - - - -- - .------- - - -- -- (:10HTR0L I--- -- -_ I UNC t .. 1-.--------------------- 1 I..1NC 1 STOP Sl"0P I STOP STOP t IVOI._UNE. (VPH) I 50 1 100 1 75 95 I 50 Fj0 I 1VOLUME (PCPH) 1 55 I 110 I 83 105 I 55 55 ICONFLICTING FLOW I 720 I 795 I i6e7 398 I 1735 360 1 i C:F�:ITIC:AL GAF' (SEC) I S.!F I 5.5 7,0 5.5 i 7.0 5.5 1 POTENTIAL CAPACI'1*'Y 472 I 423 t 72 702 1 67 738 PF:RCE.NT OF CAPACITY ( 12 1 26 I 15 I 7 1 1 . 1-11"EDENCE FAC'1 OR I 0.93 1 0.82 1 0.91 j 0.96 I TACTUAL CAPACITY I 472 1 423 I 52 702 1 46 730 1 I I SHARED LANES I I I I I 1SHARED LANE CAPACITY I RESERVE CAPACITY I 417 1 313 1 ._30 "':,98 I -9 683 1 i...E:VEL OF SERVICE --- _-__-__ I A I _.__-___ I 0 I I ____._.__ I F ______-- ------ -----__-_ A I F, A I----------_----- (AVERAGE QUEUE I ( I I I (AVERAGE DELAY (SEC) I I I __--_----_I Fe burg Holt & U11e vig UNSIGNALIZED INTERSECTION CAPACITY ANALYSIS INTERSECTION: ACCESSiELIZABE:TH 1-IHE PERIOD: 1990 PM PK HR JOB: 89-011 ( I 'i u I I i I I V -------------- 1. 0 i 04-06-1969 -------------- V V -------------- I I I I I I I i I I 0 I 0 I MAJOR ROADWAY ( ------.-__-_- HINOR ROADWAY I I I (5 MPH) I (2-WAY STOP) I --.___-- --------------------- I IAPPROACH ( --------------- EB I____.-__________________--__---_--- ► WE I NB I SE -------- I I I MOVEMENT ( L ( L ( L R ( --------------------- L R I I I------------------------ If:ONTROL I------- I UNC I------- I--------------------1 I UNC I STOP STOP I STOP STOP I (VOLUME (VPH) I 40 ( 100 i 50 70 I 35 �0 I IVOLUME (PCPH) I 44 I 110 I 55 77 I 39 33 I (CONFLICTING FLOW ( 1075 ( 720 I 1930 360 I 1985 538 I ICRITICAL GAP (SEC) I 5.5 i 5.5 I 7.0 5.5 I 7.0 5.5 1 IPOTENTIAL CAPACITY I 294 I 472 I 60 738 I 60 597 I IPERCENT OF CAPACITY i 15 I 23 I 10 I 6 I 0.97 I IIMPEDENCE FACTOR I 0.91 I 0.84 I 0.94 I InCTUAL CAPACITY i 294 I------- I 472 ► I------- I ----- 44 --------------- 738 I I ------------------•--- 43 597 I 1------------------------ ISHARED LANES I I I ------------------- I I _------------..-_-__.__._ 1 I SHARED LANE CAPACITY I 1 ( 3- 1 S 1 IRESERVE CAPACITY I 250 i 362 I -11 661 1 4 564 I I LEVEL.. OF SERVICE ( C I B I I -------I- F ------------------- A I I ---------------------I E A I---------------------I------- I AVERAGE QUEUE I I I I 1AVERAGE DELAY (SEC) I--------------------- I 1------- I I I------- 1----- ------------------- I--.-------------------- 04-06-1989 ~ ~ Felsburg Holt & Ulleoig � UNSICNALIZED INTERSECTION CAPACITY ANALYSIS INTERSECTION: ACCESS/ELIZABETH TIME PERIOD: 2010 AM PK HR JOB: 89-011 | � 15 15 � � � � ! 0 | � | � � -------------- | U v V � -------------- 15 1045 --- <--- 275 25 25 \ / -------------- V V ---------------- 25 O 65 � �------- ------------ i--------------- MAJOR {---------------------------------------� ROADWAY i MINOR ROADWAY � | � (35 MPH) i2-WAY STOP) \ �---------------------|--------------- |APPROACH | -------/------- EB WE ! ---------------------------------------| ------------------- NB -------------------� SB i I--------------------- !MOVEMENT I L \ ------- L ------------------- R | -------------------� L R � |---------------------------- ICONTROL UNC UNC STOP STOP ( STOP STOP � IVOLUME (VPH) 15 25 25 65 | 1F, 15 ! IVOLUME (PCPH) 17 28 28 72 i 17 17 � |CONFLICTING FLOW | 290 | 1070 | 1403 535 | 1458 145 | |CRITICAL CAP (SEC) | 5,5 | 5.5 | 7.0 5.5 7.0 5.5 � |POTENTIAL CAPACITY | 805 296 | 100 599 94 948 | IPERCENT OF CAPACITY 2 | 9 12 2 | }IMPEDENCE FACTOR ( 0.99 0.94 0.93 0.99 | JACTUAL CAPACITY 805 296 -------|------------------- 92 599 | -------------------i 81 948 i �---------------------!------- |SHARED LANES -------|------------------- -------------------| �---------------------|------- ISHARED LANE CAPACITY IRESERVE CAPACITY 788 | 268 1 65 527 65 931 | ILEVEL OF SERVICE i -------|------- A C i I E ------------------- A I-------------------| E A � I---------------------I !AVERACE QUEUE | | I i | |AVERACE DELAY (SEC) i UI --------------------- |------- | I ------- I ------------------- I |-------------------� | Felsburg Holt & Ulleoig �� 04-06-1989 UNSICNALIZED INTERSECTION CAPACITY ANALYSIS INTERSECTION: ACCESS/ELIZABETH TIME PERIOD: 2010 NOON PK HR JOB: 89-011 � �50 50 ( O \ � � � ---------_---- ------------- � � 50 � ~ / ^ \ 5.0 890 83O | 65 | --- ---- 100 | \ / | -------------- V V ------------- � 75 95 ( O -_-------------------�-- ! ! ----- MA3OR --------- ROADWAY { ------_--- ----------------- MINOR ROADWAY -----------� \ | | (35 MPH) i (2-WAY STOP) � �---------------------)---------------- APPROACH EQ WB N SB � (---------------------�-------�-------�-------------------�-------------------� {MOVEMENT \ L L R L R � !---------------------�-------<-------�-------------------�-------------------� �CONTROL U N C UNC STOP STOP STOP STOP � {VOLUME (VPH) 50 1 100 75 95 ] 50 50 � 1UOLUME (PCPH) 55 1 110 | 83 105 55 55 � |CONFLICTINC FLOW | 8QO | 955 | 2003 478 | 2055 440 � 1CRITICAL GAP (SEC) \ F,.F, \ 51.5 7.0 S.F, 7.0 5.5 � JPOTENTIAL CAPACITY 380 \ 343 \ 60 642 60 670 ! iPERCENT OF CAPACITY 14 } 32 ( 16 8 � IIMPEDENCE FACTOR 0.91 \ 0.77 0.90 0.95 � iACTUAL CAPACITY 380 343 ! 40 642 38 670 � |---------------------�-------|-------�-------------------�-------------------\ !SHARED LANES !--------------------- �SHARED LANE CAPACITY ---- --------|-------------------� /RE -SERVE CAPACITY 325 233 -43 537 -17 615 � ILEVEL OF SERVICE \ --------------------i- B ------ C -------\-------------------�-------------------� F A | F A i I- \AVERACE QUEUE JAVERACE DELAY (SEC) NI_ ---- _______________---� --------- |-------------------!-------------------� ~ ° FelsOurg Holt & Ulleoig UNSICNALIZED INTERSECTION CAPACITY ANALYSIS | INTERSECTION: ACCESS/ELIZABETHY 04-O6-1989 TIME PERIOD, 2010 PM PK HR JOB: 89-011 � 30 35 � -------------- i V V V � ------------- 4O . / . \ 40 785 --- 1260 70 100 ------- U ------- V - ------------ � . . . � � 50 70 � 0 �--------------------- �--------------- � ) MAJOR |---------------------------------------{ ROADWAY MINOR ROADWAY � � | (35 MPH) (2-WAY STOP) � --------------------- JAPPROACH ! --------------- EB ------- -------_-------------------------------| | WB -------------------------- NB I -------------------| SB � (--------------------- [MOVEMENT L L L R -------------------� L R � I---------------------i------- J[ONTROL | UNC |-------�------------------- UMC STOP STOP STOP STOP � IUOLUME (VPH) 40 ! 100 50 70 35 30 | lVOLUME (PCPH) | 44 110 ( 55 77 } 39 33 � |CONFLICTING FLOW | 1300 | 855 | 2290 428 { 2345 650 | [CRITICAL CAP (SEC) | 5.5 | 5.5 i 7.8 5.5 | 7.0 5.5 � 1POTENTIAL CAPACITY 228 | 393 | 60 679 | 60 518 | IPERCENT OF CAPACITY ( 20 28 1 11 i 6 1 JIMPEDENCE FACTOR i 0.87 0.81 1 0.93 | 0.96 i JACTUAL CAPACITY 220 393 1 i------- |------------------- 40 679 -------------------\ 39 518 � 1--------------------- |------- ISHARED LANES ------------------- -------------------� I---------------------�------- ISHARED LANE CAPACITY �------- Y � | {RESERVE CAPACITY | 176 ! 283 -15 602 i 1 485 | \LEVEL OF SERUICE \ �------- D C | i------- F ------------------- A -------------------� E A � I--------------------- \AUERACE QUEUE JAUERACE DELAY (SEC) � I --------------------- �------- i------- i------------------- �-------------------�