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7 <br /> CITY OF SANTA ANA <br /> Sub-Task 2.3: 'Before' Travel Time Studies <br /> Travel time studies will be used to measure the effectiveness of the project improvements and <br /> timing plans. At a minimum, consultant shall conduct the following travel time studies to measure <br /> the traffic conditions prior to the development and implementation of new timing plans. <br /> Since the Kraemer Boulevard/Glassell Street/Grand Avenue corridor is part of the OCTA <br /> Countywide Baseline Project, OCTA is currently collecting data, developing traffic signal <br /> synchronization timing, and will implement and fine tune new timing for all the fifty-seven (57) <br /> agency signals along this corridor, except the Caltrans signals. The Consultant shall coordinate <br /> the Before Travel Time Studies with OCTA's Countywide Baseline Project. <br /> A. Project travel-time data shall be collected using the floating car method, a laptop <br /> computer, a GPS receiver unit, and Tru-Traffic. <br /> B. Consultant shall complete, at least, five (5) runs in each direction for each of the three <br /> weekday timing plans (AM, mid-day, and PM) and one Saturday mid-day plan. Number <br /> of runs shall be consistent for both directions and time periods. Based on engineering <br /> judgment and in conjunction with approval, consultant should subdivide the corridor into <br /> contiguous segments for the 'Before' and 'After' runs. Consultant shall notify and receive <br /> approval from Santa Ana on number of runs and contiguous segments to be <br /> accomplished. <br /> C. Consultant shall conduct a `Before' field study report representative of the times and days <br /> for which synchronization plans will be developed. The report shall identify Measures of <br /> Effectiveness(MOE) to evaluate the effects of the synchronization plans. <br /> D. MOE's to evaluate shall include, at a minimum, traffic flow, travel time, average speed, <br /> number of stops per mile, number of intersections traversed on green vs. stopped by red <br /> (Greens per Red) (note:Average Speed, stops per Mile, and Greens per Red are the new <br /> OCTA MOE, Corridor Synchronization Performance Index (CSPI)), fuel consumption <br /> reduction, pollution reduction, and other pertinent items. <br /> E. The CONSULTANT shall include the CSPI as part of the MOEs as they are easily <br /> identifiable by lay persons relevant to demonstrating corridor improvements. The identified <br /> MOE's shall be compiled for the corridor using the floating car method and from latest <br /> Synchro and from Tru-Traffic. <br /> F. Consultant shall prepare a memorandum and present the findings to Santa Ana and <br /> partnering agencies outlining the findings of the `Before' field study. <br /> 1. The report shall identify MOE to evaluate the effects of the synchronization plans. <br /> The identified MOE's shall be compiled for the corridor using the floating car <br /> method and from latest Synchro and from Tru-Traffic. <br /> 2. The report shall address likely optimization strategies for signal synchronization, <br /> specifically focusing on how to consider PROJECT optimization: end-to-end vs. <br /> coordinated zones. <br /> 8 <br />