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Exhibit A <br /> movements at the intersection. URS will use the 2035 a.m. and p.m. peak hour intersection <br /> turning movements to re-assign the traffic according to the roadway or lane configuration <br /> changes for the five proposed design concepts and evaluate the potential improvements and <br /> related traffic impacts at the Brush College Road/Faries Parkway intersection. No additional <br /> data collection is included. <br /> B. Traffic Modeling—URS will utilize a range of traffic analysis software to assess the traffic <br /> impacts at the Brush College Road/Faries Parkway intersection. These analysis software <br /> includes Synchro(intersection capacity and optimization software), Highway Capacity Software, <br /> or HCS (capacity analysis results for an IDS),RODEL(roundabout analysis), and VISSIM <br /> (network wide micro-simulation modeling). The existing VISSIM model will be modified <br /> accordingly to evaluate the respective intersection improvement concepts. Detailed use of the <br /> traffic software is provided below for each of the concepts. <br /> C. Document Alternative Transportation Impacts -URS will document potential impacts related to <br /> non-motorized and public transportation for each of the potential improvement concepts. <br /> Potential mitigation measures, or other accommodations, will be documented. <br /> D. Prepare Intersection Design Study—URS will perform an intersection design study(IDS) for the <br /> preferred improvement at the Brush College Road/Faries Parkway intersection. <br /> 2. Jug Handle with Traffic Signals <br /> URS will evaluate the jug handle with traffic signals concept using Synchro, HCS,and VISSIM. <br /> Synchro will be used to identify the lane geometry needed to achieve an acceptable intersection level <br /> of service(LOS)in both the a.m. and p.m. peak hour. The preliminary lane geometry will then be <br /> coded in the VISSIM model to evaluate that network wide measures of effectiveness (MOEs). URS <br /> will provide a summary of MOEs along with traffic simulation screen shots and short video which <br /> can be used for public display and/or presentations. URS will also provide a brief summary <br /> documenting the traffic analysis including: intersection turning movement reassignment, evaluation <br /> methodology, and capacity results in both Synchro and HCS (in HCS in case needed for an IDS). In <br /> addition, URS will identify potential local access issues to nearby properties and possible mitigation <br /> measures. <br /> 3. Jug Handle with Roundabouts <br /> URS will evaluate the jug handle with roundabouts concept using RODEL, HCS, and VISSIM. <br /> RODEL will be used to identify the lane geometry needed to achieve an acceptable intersection level <br /> of service(LOS). The preliminary lane geometry will then be coded in the VISSIM model to <br /> evaluate that network wide measures of effectiveness (MOEs). URS will provide a summary of <br /> MOEs along with traffic simulation screen shots and short video which can be used for public <br /> display and/or presentations. URS will also provide a brief summary documenting the traffic <br /> analysis including: intersection turning movement reassignment, evaluation methodology, and <br /> capacity results from RODEL. In addition, URS will identify potential local access issues to nearby <br /> properties and possible mitigation measures. Given the potential complex nature of this scenario, it <br /> is possible that multiple VISSIM runs will be needed. This scope of work includes time for two <br /> VISSIM runs for this concept. <br /> 7-26-11 A-3 <br />