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Home My WebLink AboutTHE GROVE AT FORT COLLINS - PDP - 16-10B - REPORTS - TRAFFIC STUDY (6)4/45 N N V � oN �11/11 to °I' (0 — 0/1 18/20 0/18 f r 0/3 i rn IT rn 4/24 � N O 1008/976 —iw- 00 I � C° � 102/40 (14 Co CO - 491/926 238/197 123/26 --li t r 800/901 - — N 00 h 85/49 `00 (M D ap O M (O 29/32 Rolland nd Moore Drive 2010 PEAK HOUR TRAFFIC --// J DELICH j t—ASSOCIATES A& N AM/PM Approach Volume 83 163 Prospect Road Figure 2 8/54 9, 10/6 0/0 ./ - 20/27 4/29 1 0/0 — CD 4/25 U') N 0 0 0 00 CY) I` a— O 914/993 0 N Cl)49/28 v M o i° 459/887 . 242/259 100/30 1 (� 712/908 102/55 _° ``' tt N N N 30 3 Rolland Moore Drive 2009 PEAK HOUR TRAFFIC _�/L—DELICH -7,1 f—ASSOCIATES N AM/PM Approach Volume 750/1174 Prospect Road Figure 1 At the Prospect/Centre intersection, the approach volumes are higher on three of the four legs in the morning peak hour and less on all legs in the afternoon peak hour in 2010 compared to 2009. The sum of the approach volumes in 2009 are 2312 vehicles in the morning peak hour and 3045 vehicles in the afternoon peak hour. The sum of the approach volumes in 2010 are 2318 vehicles in the morning peak hour and 2909 vehicles in the afternoon peak hour. The morning peak hour volume was, virtually, the same (+6) and there was a reduction of 136 vehicles in the afternoon peak hour. In the morning peak hour at the Prospect/Centre intersection, the three approaches that have higher traffic volumes are: southbound Centre Avenue, westbound Prospect Road, and eastbound Prospect Road. On the north leg of Centre Avenue (southbound), the difference is only 13 vehicles. This difference is negligible and will have no impact on the operation of the Prospect/Centre intersection. On the east leg of Prospect Road (westbound), the difference is 81 vehicles. The increases occurred for the through movement and the right-tum movement. The left -turn movement actually decreased. Using the 2009 counts, the westbound through/right-turn movement and left-tum movement operated at level of service B, in the morning peak hour. Prospect Road through traffic receives the highest component of green time at this signalized intersection. Even with the increase in traffic in 2010, this leg would continue to operate at level of service B. On the west leg of Prospect Road (eastbound); the difference is 94 vehicles. The increases occurred for the left -turn movement and through movement. The right -turn movement actually decreased. Using the 2009 counts, the eastbound through/right-turn movement operated at level of service B and the left -turn movement operated at level of service A, in the morning peak hour. Prospect Road through traffic receives the highest component of green time at this intersection. The amount of green time for the eastbound left -turn movement can be increased so that its level of service will be no worse than B without significantly changing the level of service of the through/right-turn movement. It is concluded that the operation of the Prospect/Centre intersection will not change significantly even though the traffic increased on three of the four legs in the morning peak hour. On the south leg of Centre Avenue, both the northbound and southbound traffic was lower in both peak hours in 2010 compared to 2009. The total 2009 volume on the south leg of the Centre Avenue was 968 vehicles in the morning peak hour and 1078 vehicles in the afternoon peak hour_ The total 2010 volume on the south leg of Centre Avenue was 774 vehicles in the morning peak hour and 859 vehicles in the afternoon peak hour. This results in a reduction of 194 vehicles and 219 vehicles in the respective peak hours. From this, it is concluded that there is a corresponding reduction in traffic on Centre Avenue further to the south near Rolland Moore Drive and the other NRRC accesses on Centre Avenue, which are near the Grove at Fort Collins site. The cited TIS evaluated the impacts with both higher site generated traffic and higher background traffic. Given this information, it is respectfully requested that a new TIS not be required with the proposed change in the Grove at Fort Collins site plan_ Do not hesitate to contact me if you have questions or desire additional information. 0 DELICH ASSOCIATES Traffic & Transportation Engineering 2272 Glen Haven Drive Loveland, Colorado 80538 Phone: (970) 669-2061 Fax: (970) 669-5034 "711 Ar MEMORANDUM TO: Chris Russ, Campus Crest ., •x�� O' Linda Ripley, Ripley Design a;,��. FGV Nick Haws, Northern Engineering = e—U ^ Ward Stanford, Fort Collins Traffic Operations 4 FROM: Matt Delich DATE: December 2, 2010 SUBJECT: The Grove at Fort Collins Analyses (File: 0920ME03) Transportation Impact Analysis - Traffic Count The Grove at Fort Collins is a proposed student housing development located within the Centre for Advanced Technology in Fort Collins. A transportation impact study (TIS) "The Grove at Fort Collins TIS," dated May 2010 was prepared and accepted by the City of Fort Collins. The cited TIS reflected a population of 624 persons (beds). Due to various planning issues, a new site plan was developed which addressed these issues. The proposed population is now 612 persons (beds). The reduction in the number of beds would have a corresponding reduction in the trip generation for The Grove at FortCollins. It is not known whether the new plan would require anew TIS. One reason to require a new TIS is that the traffic counts in the cited TIS are more than one year old (Larimer County Urban Area Street Standards, Section 4.4.1.A). In order to aid in making that determination, Ward Stanford, Fort Collins Traffic Operations, requested a comparison of the traffic counts in the cited TIS and the most recent traffic counts at the same signalized intersections. The most recent counts were obtained by the City of Fort Collins at the Prospect/Centre intersection (8/24/10) and the Shields/Rolland Moore intersection (3/3/10). Figure 1 shows the 2009 peak hour counts at the subject intersections. Figure 2 shows the 2010 peak hour counts at the subject intersections. A comparison of the approach volumes would give an indication of how much change in traffic has occurred between 2009 and 2010. The approach volumes at each intersection are also shown on Figure 1 and Figure 2. At the Shields/Rolland Moore intersection, the approach volumes on all legs were less in 2010 compared to 2009. The sum of the approach volumes in 2009 are 2016 vehicles in the morning peak hour and 2961 vehicles in the afternoon peak hour. The sum of the approach volumes in 2010 are 1943 vehicles in the morning peak hour and 2778 vehicles in the afternoon peak hour. There was a reduction of 73 vehicles and 183 vehicles in the respective peak hours.