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Home My WebLink AboutSUMMERHILL PUD PRELIMINARY - 41 93 - SUBMITTAL DOCUMENTS - ROUND 1 - TRAFFIC STUDY1985 HCM: UNSIGNALIZED INTERSECTIONS Page-1 X##i#iXXYXXXiiiiiXl.XiiiXXXii#iiii#XX#i#XiXXXXii##iiii#iiiiXX#iYiiiXXX IDENTIFYING INFORMATION ------------------------------------------------------------------- AVERAGE RUNNING SPEED, MAJOR STREET.. 35 PEAK HOUR FACTOR ..................... 1 AREA POPULATION ...................... 100000 NAME OF THE EAST/WEST STREET......... prospect NAME OF THE NORTH/SOUTH STREET....... underhill NAME OF THE ANALYST .................. mid DATE OF THE ANALYSIS (mm/dd/yy)...... 7/2/93 TIME PERIOD ANALYZED ................. am aml 1995 OTHER INFORMATION.... INTERSECTION TYPE AND CONTROL -------------------------------------------------------------------- INTERSECTION TYPE: 4-LEG MAJOR STREET DIRECTION: EAST/WEST CONTROL TYPE NORTHBOUND: STOP SIGN CONTROL TYPE SOUTHBOUND: STOP SIGN TRAFFIC VOLUMES --------------------------------------------------------------------- EB WB NB SB --- ---- ---- ---- LEFT 10 15 5 10 THRU 370 705 1 1 RIGHT 10 15 10 5 NUMBER OF LANES AND LANE USAGE --------------------------------------------------------------------- EB WB NB S8 ------- -------------- ------- LANES 2 2 1 1 i.r.NE Uc,Ar:: 1.1f: 1. 1:� CAPACITY AND LEVEL -OF -SERVICE Page-3 --------------------------------------------------------------------- POTEN- ACTUAL FLOW- TIAL MOVEMENT SHARED RESERVE RATE CAPACITY CAPACITY CAPACITY CAPACITY MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS p M SH R SH ------- -------- --------- ---- ------------------- -- MINOR STREET NB LEFT 6 142 137 > 137 > 132 > D THROUGH 1 174 169 > 296 169 > 279 168 >C D RIGHT 11 862 862 > 862 > 851 > MINOR STREET SB LEFT 11 142 136 > 136 > 125 > D THROUGH 1 174 169 > 185 169 > 168 168 >D D RIGHT 6 704 704 > 704 > 699 > A MAJOR STREET EB LEFT 11 464 464 464 453 A WB LEFT 17 702 702 702 686 A IDENTIFYING INFORMATION NAME OF THE EAST/WEST STREET...... prospect NAME OF THE NORTH/SOUTH STREET.... underhill DATE AND TIME OF THE ANALYSIS..... 7/2/93 : am pr% 1995 OTHER INFORMATION.... 1985 HCM: UNSIGNALIZED INTERSECTIONS Paae-1 IDENTIFYING INFORMATION --------------------------------------------------------------------- AVERAGE RUNNING SPEED, MAJOR STREET.. 35 PEAK HOUR FACTOR ..................... 1 AREA POPULATION ...................... 100000 NAME OF THE EAST/WEST STREET......... prospect NAME OF THE NORTH/SOUTH STREET....... underhill NAME OF THE ANALYST .................. mJd DATE OF THE ANALYSIS (mm/dd/yy)...... 7/2/93 TIME PERIOD ANALYZED ................. a \ p/N/ 1995 OTHER INFORMATION.... INTERSECTION TYPE AND CONTROL ------------------------ ------------ --------- INTERSECTION TYPE: 4-LEG MAJOR STREET DIRECTION: EAST/WEST CONTROL TYPE NORTHBOUND: STOP SIGN CONTROL TYPE SOUTHBOUND: STOP SIGN TRAFFIC VOLUMES --------------------------------------------------------------------- EB WB NB SB ---- ---- ---- ---- LEFT 5 5 10 15 THRU 660 300 1 1 RIGHT 5 5 15 10 NUMBER OF LANES AND LANE USAGE ------------- ------------------ ---------------------------------- EB WE NB SB ------- __ ----- __-___- LANES = I LANE USAGE I_TR LTP CAPACITY AND LEVEL -OF -SERVICE Paae-3 ----------------------------------------- ------ POTEN- ACTUAL FLOW- TIAL MOVEMENT SHARED RESERVE RATE CAPACITY CAPACITY CAPACITY CAPACITY MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS p M SH R SH ------- ------- --------- ----------- ------------ --- MINOR STREET NB LEFT 11 176 173 > 173 > 162 > D THROUGH 1 215 212 > 312 212 > 284 211 >C C RIGHT 17 729 729 > 729 > 712 > A MINOR STREET SB LEFT 17 174 170 > 170 > 153 > u THROUGH 1 215 212 > 249 212 > 221 711 >C C RIGHT 11 901 901 > 901 > 890 > A MAJOR STREET EB LEFT 6 770 770 770 764 A WB LEFT 6 499 499 499 493 A IDENTIFYING INFORMATION -------------------------------------------------------- NAME OF THE EAST/WEST STREET...... prospect NAME OF THE NORTH/SOUTH STREET.... underhill DATE AND TIME OF THE ANALYSIS..... 7/2/93 am pm 1995 OTHER INFORMATION.... 1985 HCM: UNSIGNALIZED INTERSECTIONS Page-1 X XXX#X#X###%#XXtZX##XXXX#tX###XXYX Y.#X#X#XXXX#XXYXMXX###X#X.Y(X####X###% IDENTIFYING INFORMATION -------------------------------------- AVERAGE RUNNING SPEED. MAJOR STREET.. 35 PEAK HOUR FACTOR.. ................... 1 AREA POPULATION ...................... 100000 NAME OF THE EAST/WEST STREET......... prospect NAME OF THE NORTH/SOUTH STREET....... westbridge NAME OF THE ANALYST .................. mJd DATE OF THE ANALYSIS (mm/dd/yy)...... 7/2/93 TIME PERIOD ANALYZED ................. am Pm 1995 OTHER INFORMATION.... INTERSECTION TYPE AND CONTROL ---------------------------------------------------------- ___________ INTERSECTION TYPE: T-INTERSECTION MAJOR STREET DIRECTION: EAST/WEST CONTROL TYPE NORTHBOUND: STOP SIGN TRAFFIC VOLUMES ------------------------------------------ ---------------------- EB WB NB SB ____ ____ ____ ---- LEFT 0 40 10 -- THRU 370 725 0 -- RIGHT 20 0 20 -- NUMBER OF LANES --------------------------------------------------------------------- ES WB NB SE. ------- ------- ------- ------- LANES-- CAPACITY AND LEVEL -OF -SERVICE Page-3 --------------------------------------------------------------------- POTEN- ACTUAL FLOW- TIAL MOVEMENT SHARED RESERVE RATE CAPACITY CAPACITY CAPACITY CAPACITY MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS p M SH R SH ------- ------ --------- ----------- ------------ --- MINOR STREET NB LEFT 11 138 133 > 133 > 122 > D > 304 > 271 >C RIGHT 22 857 857 > 857 > 835 > A MAJOR STREET WB LEFT 44 693 693 693 649 IDENTIFYING INFORMATION -------------------------------------------------------------------- NAME OF THE EAST/WEST STREET...... prospect NAME OF THE NORTH/SOUTH STREET.... westbridge DATE AND TIME OF THE ANALYSIS..... 7/2/93 ; am p� 1995 OTHER INFORMATION.... 1985 HCM: UNSIGNALIZED INTERSECTIONS Paae-1 ............ *.... .... *.... *...... iZIkMY�Y�YY.'K lkt iMC lK�XX'.K>.Y W. Z't IDENTIFYING INFORMATION — ------------------------------------------------------------------- AVERAGE RUNNING SPEED, MAJOR STREET.. 35 PEAK HOUR FACTOR ..................... 1 AREA POPULATION ...................... 100000 NAME OF THE EAST/WEST STREET......... prospect NAME OF THE NORTH/SOUTH STREET....... westbridae NAME OF THE ANALYST .................. mJd DATE OF THE ANALYSIS (mm/dd/yy)...... 7/2/93 TIME PERIOD ANALYZED ................. Pm 1995 OTHER INFORMATION.... INTERSECTION TYPE AND CONTROL --------------------------------------------------------------------- INTERSECTION TYPE: T-INTERSECTION MAJOR STREET DIRECTION: EAST/WEST CONTROL TYPE NORTHBOUND: STOP SIGN TRAFFIC VOLUMES ---------------------------------------------------------------- -- EB WB NB SB --- ---- ---- ---- LEFT 0 10 10 -- THRU 685 300 0 -- RIGHT 5 0 40 -- NUMBER OF LANES --------------------------------------------------------------------- EB WB NB SB ------- -------------- ------- LANES 2 2 1 -- CAPACITY AND LEVEL -OF -SERVICE Page-3 --------------------------------------------------------------------- POTEN- ACTUAL FLOW- TIAL MOVEMENT SHARED RESERVE RATE CAPACITY CAPACITY CAPACITY CAPACITY MOVEMENT v(pcph) c (pcph) c (pcph) c (pcph) c = c - v LOS p M SH R SH ------------------------------------------------ --- MINOR STREET NB LEFT 11 173 171 RIGHT 44 718 718 MAJOR STREET WB LEFT 11 483 483 IDENTIFYING INFORMATION > 171 > 160 > D > 437 > 382 >B > 718 > 674 > A 483 472 NAME OF THE EAST/WEST STREET...... prospect NAME OF THE NORTH/SOUTH STREET.... westbridae DATE AND TIME OF THE ANALYSIS..... 7/2/93 am pm 1995 OTHER INFORMATION..._ APPENDIX D 1 qqs P&A4 7&PFIC- cSUMME2LFr«: (n4. I , (EO(-)AJbC-b vI�, To Vj(i-ie�L S I Jn o-- 30017et5' 30017 Z S d �- 5//5 , F ! O140 NOSP(,3C (60r37a zo 4 �I � II — ()A) I I " I I I I � APPENDIX C No Text APPENDIX B WEST PROSPECT ROAD EXISTING 5-PLEX INGLE FAMILY ENVELOPE CONVERT TO A -4 > 4 PLEX WITH 4 UNASSIGNED PARKING SPACES f AND 4 COVERED 11 FINGLEFAMII �rt 61-3-T SPACES. EXISTING m 5-PLEX 61 iIIL-----� E- cn > zi EXISTING S-PLEX ENVELOPE in I i;f MAIL KIOSK 9z 67w 7/1, EXISTING 5-PLEX r ENVELOPE i59 I 57.5 )< GAS EASEMENT (TO BE ABONDONED) EXISTING ENVELUEE- (FOR GARAGES) TO BE ABANDONED 54.. Qj s.. EXISTING WELL 45 EXISTING FAMILY S-PL X -SINGLE ENVELOPE CHANGE TO A OL 9-5 6-PLEX ENVELOPE WITH PARKING FMO' NEW AL MERCER CAN PPROX. CANAL BANK 1.-' 14 VEHICLES 6 --15, u-nurry EASEMENT APPENDIX A Land Use Summerhill PUD 62 d.u. 1981 Underhill PUD 222 d.u. Table 1 Trip Generation Daily A.M. Peak P.M. Peak Trips Trips Trips Trips Trips in out in out 370 5 23 23 12 1310 17 82 82 42 Table 2 1995 Peak Hour Operation Level of Service Intersection AM PM Prospect/Westbridge (stop sign) NB LT D D NB RT A A WB LT A A Prospect/Underhill (stop sign) NB LT/T/RT C C SB LT/T/RT C D EB LT A A WB LT A A Table 2 shows the intersection operation at the two key intersections using the traffic shown in Appendix C. Calculation forms are provided in Appendix D. The stop sign controlled intersections will operate acceptably. Acceptable operation is defined as level of service D or better. It is concluded that the key intersections accessing the Summerhill PUD will operate acceptably. The Summerhill PUD will generate significantly less traffic than the Underhill PUD, which was proposed at this site in 1981. co Cl) MEMORANDUM co O 0 o TO: Eldon Ward, Cityscape Od Fort Collins Transportation Division 10 Fort Collins Planning Department o FROM: Matt Delich Z g W DATE: July 3, 1993 O SUBJECT: Summerhill PUD traffic study (File: 9345MEM1) w z Summerhill PUD is a residential development located south aof Prospect Road and approximately 1/2 mile west of Shields Street in Fort Collins. It consists of 62 dwelling units on Z a 5.23 acres. The units are attached in 2 - 6 plex groupings. r Z m Access is proposed to Prospect Road via Westbridge Drive co on the east and Underhill Drive in the west -central portion M of this development. A reduced scale drawing of the Summerhill PUD site plan is in Appendix A. Westbridge Drive also serves as an access to the "Bridges" residential area to the east of Summerhill PUD. Since Prospect Road is currently being reconstructed, current traffic counts could not be obtained. Therefore, counts contained in a number of traffic studies were used to synthesize the peak hour traffic. The synthesized traffic depicts the conditions when Colorado State University is in session. The synthesized peak hour traffic is shown in Appendix B. z Trip generation was estimated using Trip Generation, 5th W Edition, ITE as the reference document. The townhome category Z (Code 230) was used in the trip generation calculation. Table z 1 shows the daily and peak hour vehicle trips generated at the LJ "' Summerhill PUD. In 1981 a residential development known as > Underhill PUD was proposed at this same location. Underhill PUD consisted of 222 dwelling units on a larger site which = Z extended south of the New Mercer Canal. However, in the c� o Underhill PUD there were the same two accesses to Prospect F Road (Westbridge Drive and Underhill Drive). Table 1 also Wo o shows the expected trip generation from the Underhill PUD. N The proposed Summerhill PUD will generate approximately 1/4 . ¢ the number of trips as the Underhill PUD. This is a significant reduction in traffic at the two accesses to Prospect Road. W s Appendix C shows the 1995 peak hour traffic at the two Q intersections that access the Summerhill PUD. This traffic Q includes the background traffic from the existing dwelling units along Underhill Drive. -And from the "Bridges" residential area.