75B - PH - EIR 1584 SANTA CLARA - Laserfiche WebLink

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KOA CORPORATION NANNING & ENGIWEVONG Stop delay on Santa Clara Avenue at Wright Street is expected to increase by 3.6 seconds in the PM peak hour under buildout conditions due to the proposed project. Level of Service is at LOS F under these conditions. The proposed project contributes 9 trips to the intersection in the PM peak hour. The poor level of service reported for Santa Clara Avenue /Wright Street is due to the northbound left movement of vehicles turning from the minor leg (Wright Street) onto the major street (Santa Clara Avenue). Mitigation measures are recommended at this location to maintain an adequate intersection level of service. Possible measures include installation of a traffic signal or by construction of a roundabout or wide (14 -foot) 2 -way left -turn lane. These measures are the same as recommended in the previous (201 1) traffic study. Traffic signal warrants were tested for the intersection of Santa Clara Avenue at Wright Street. Under near -term traffic conditions, the 8 -hour Interruption of Continuous Traffic Warrant was met. Under buildout with project traffic conditions, the Peak Hour Warrant and the 8 -hour Interruption of Continuous Traffic Warrant were both met. Conclusions The intersection level of service analysis conducted for the proposed site plan change and revised project trip distribution determined that there is a significant impact to one intersection, Santa Clara Avenue at Wright Street, as a result of the project. This is the same conclusion as reached in the previous (201 1) traffic study. Mitigation measures will be required at this intersection. Recommended measures include a traffic signal, roundabout, or wide (14 -foot) 2 -way left -turn lane. Again, the recommended mitigation measures are the same as recommended in the previous (201 1) traffic study. Expected street segment level of service on Santa Clara Avenue between Grand Avenue and Tustin Avenue conducted for the revised project trip distribution under Buildout With Project conditions is poor (Level E). The expected LOS E conditions are due to a combination of existing traffic volumes and ambient traffic growth, not as a result of added traffic volumes from the project. KOA Corporation hopes that the review and recommendations conducted for the revised site plan and trip distribution for the TAVA Homes project will assist the City in evaluating the potential traffic impacts and mitigation measures of the proposed project. KOA is available to assist the City in any further traffic analysis of the project area as needed. TAVA Homes Supplemental Traffic Analysis July 18, 2013 75B -133