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Task 4: Network Coding <br />Purpose <br />CONSULTANT shall code the highway and transit networks based on the roadway and transit definitions <br />from Task 2. <br />Approach and Methodology <br />The Alameda and Contra Costa County highway networks shall be used as the basis for the network <br />development in Tri-Valley. Beyond freeways and major and selected minor arterials, which are curreridy <br />present within the counties' networks, the complete set of minor arterials and selected collectors as defined <br />in Task 2 shall be added to the highway network. CONSULTANT shall refine the network in the areas <br />surrounding Tri-Valley, in order to better reflect travel patterns between Tri-Valley and outlying areas. <br />The peak -hour and off-peak period .transit networks, obtained from the existing alameda Countywide <br />network, shall be updated and implemented in the model_ The contra Costa County network shall be <br />incorporated into this network. <br />End Product <br />The end product of this task will be a base year (1990) highway and transit network, including centroid <br />connector locations, representing a- detailed transportation system in and immediately bordering the Tri- <br />Valley area. <br />Task 5: Traffic Data Requirements <br />Purpose <br />The purpose of this task is to obtain current year (1990) traffic count data for use in validating the Tri- <br />Valley subarea travel demand models. <br />Approach and Methodology <br />Mainline traffic counts on freeways, expressways, and arterials should be provided for an average weekday <br />as well as for both the AM and PM peak hours. Intersection count data should include AM and PM peak - <br />Cooperative Agreement No. 45.01.00 Exhibit A <br />Between Contra Costa Transportation Authority and Page 6 of 13 <br />County of Alameda, Pleasanton, Dublin, and Livermore <br />