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68 <br /> `n <br /> Project De v III Ip iir ne iirt t Scope of r III( <br /> aur traan"'d' l'ud oar <br /> Traffic Data Collection <br /> The project team will review and assess the existing volume data. As base year and projected volumes <br /> exist for a number of locations, every effort will be taken to utilize existing data. No new count locations <br /> will be needed or are scoped as part of this process. <br /> As part of this process the project team will work with local stakeholders to determine what vehicle <br /> classification data is currently available and what additional data is needed. The project team will then <br /> work to create a data collection plan for finalizing any data needs during the field data collection phase. <br /> Assumptions for pedestrian flows and parking conditions identified in section 3.3.3 will be made at this <br /> point in time. Pedestrian flow information will be most critical in the downtown Durham area as within <br /> that location pedestrian interaction with vehicles could have the greatest impact on simulation results. <br /> Field Data Collection <br /> To complete the data collection process the project team, in coordination with the North Carolina <br /> Department of Transportation (NCDOT), will begin the process of collecting field data. This will include <br /> the following: <br /> 1110 A field visit <br /> Verification of geometry and signal plans <br /> Filming corridors for comparison to micro-simulation model runs <br /> Collecting and verifying speed limit data <br /> Collecting travel time data utilizing float car methodology for model validation <br /> Review of pedestrian and parking assumptions from previous step <br /> Collection of any further data identified in previous step <br /> This will complete the data collection phase of the project. No additional data needs are foreseen past <br /> this point. <br /> Process Data <br /> The first step in processing the volume data will be the revision of AM and PM peak hours volumes from <br /> any additional count locations that may have been collected by others such as NCDOT or DCHC MPO. <br /> Any new data will be processed similar to the forecasts created for the Draft Traffic Analysis Technical <br /> Report. <br /> The data will also be examined to determine the speed distributions seen at various places within the <br /> study area. Individual speeds will be categorized to determine how the traffic speeds vary. Data will also <br /> be analyzed to determine heavy vehicle percentages and vehicle fleet distribution.This data will then be <br /> compared against other similar data and finally entered into the VisSim models. <br /> Travel time data will be processed for use in validation of the micro-simulation models, <br /> Lastly, pedestrian and parking data gathered in the field will be reviewed against the assumptions made <br /> and adjustments will be made as needed. <br /> Durharn Orange Lliglht Rail rransit Project � June 2013 �4-3 IC RA11:1,. <br />