FULL PACKET_2011-05-16 - Laserfiche WebLink

Home Browse Search

Environmental Consulting Services (200 East First American Way) I City of Santa Ana TIA Task 2: Data Collection and Research • Visit the project study area to confirm existing conditions with respect to existing site development, local area development, site access, parking use, and areas of congestion in order to verify our overall understanding of traffic conditions in the area that might affect this project. • Document the existing roadway striping, traffic control measures, curbside parking restrictions, adjacent intersection configurations, and other pertinent roadway features. • Obtain existing street improvement plans /striping plans for key roadways in the immediate vicinity of the project site. Compile information with regards to planned street improvements in the project study area. • Conduct AM peak period and PM peak period traffic volume counts at up to fifteen (15) study intersections. The traffic counts will be conducted between the hours of 7:00 AM and 9:00 AM and 4:00 PM and 6 :00 PM. These traffic volume data will be utilized in the traffic impact analysis for the project. The number and location of the study intersections will be verified with City staff prior to commencement of the analysis. Should traffic and analysis of additional intersections be required (i.e., more than 15 intersections), an amendment to the TIA scope and budget will be necessary. • Conduct 24 -hour machine traffic counts at up to fifteen (15) roadway segments to support the Greenhouse Gas, Air Quality and Noise analyses. • Research data at the City of Santa Ana, adjacent jurisdictions and recent traffic impact studies prepared for developments in the project vicinity regarding the status of other proposed developments (related projects) in the area that may contribute cumulative impacts to the adjacent street system and study locations in the vicinity of the proposed project. The compiled list of related projects will be forwarded for review and approval by City staff. • Obtain development information for the remaining vacant portion of the 3 -acre parcel to include as a related project in the cumulative traffic setting. TIA Task 3: Trip Generation, Distribution, and Assignment • Prepare trip generation forecasts for the proposed project for a typical weekday over a 24 -hour period, as well as for the commuter AM and PM peak hours. The trip generation forecasts will be derived from trip rates listed in Trip Generation, 8h Edition, published by the Institute of Transportation Engineers (ITE) in 2008. Appropriate trip generation credits will also be applied for the existing land uses on site, mixed -use development, and transit, if applicable. • Assign the forecasted AM and PM peak hour trips expected to be generated by the proposed project to the study intersections based on existing and anticipated traffic patterns to and from the project site, and input from City staff. The assumed distribution pattern will be submitted for review and approval by City staff prior to finalization. • Prepare trip generation forecasts for the related projects for a typical weekday over a 24 -hour period, as well as for the commuter AM and PM peak hours utilizing the ITE Trip Generation publication. The AM and PM peak hour trips expected to be generated by the related projects will be distributed and assigned to the local street system. TIA Task 4: Formulation of Existing Plus Project, Near -Term, and long -term Traffic Volumes • Develop daily, AM peak hour and PM peak hour "existing plus project" traffic volume projections for 15 intersections and 15 roadway segments. • Develop daily, AM peak hour and PM peak hour "near -term" traffic volume projections based on the application of an annual growth factor to the existing traffic volumes plus the addition of related project traffic plus the addition of Project traffic for 15 intersections and 15 roadway segments. Use of disclosae of data contained on this sheet is subject to the restfkliorl on the tide page of this poposal. 25G -23 iC c..t F