6.2.- 6.4. SR 11-18-2002 - Laserfiche WebLink

Home Browse Search

Elk River Station EAW September 6, 2002 Traffic Analysis With the post development volumes, intersection capacity analyses were computed to assess the ability of the nearby roadway system to accommodate the Elk River Station development (and expanded the transit station). An initial set of analyses was conducted with the following assumptions: Table 21.2. Initial Traffic Control Assumptions Intersection South access to Elk River Station (opposite Transit Station south access) North access to Elk River Station Transit Station north access Traffic Control Two-way stop sign control for east-west moves Right in/right out only Stop sign control for west (Transit Station) leg The results of the traffic analyses show that with side street Stop control, the north access to Elk River Station and the north Transit Station access will function well, with only moderate delays. However, with two-way stop sign control and full growth in background traffic to the assumed levels, the south 'access to' Elk River Station (opposite the Transit Station south access) would not function properly in either the A.M. or P.M. peak. The analysis programs indicate that at those volume levels the vehicles turning left (westbound) out of the Elk River Station site would be unable to exit onto the roadway in an acceptable amount of time and that queues would continue to grow on this leg. The south intersection access to Elk River Station was also analyzed with four-way stop sign control. At the full estimated volume levels, with four way stop signs the intersection would function very efficiently with very moderate delays for all movements. The traffic analysis recommended that upon opening of development, the intersection could be operated with two-way stop control, with a plan of monitoring the operations. In the future, as both background growth continues to occur and Elk River Station reaches full build out and occupancy, four-way stop sign control may become the appropriate control strategy for this intersection; With appropriate turn lanes and stop sign controls, the proposed project is not expected to affect local or regional traffic operations. 22. Vehicle-Related Air Emissions Estimate the effect of the project's traffic generation on air quali~.', including carbon monoxide l~'els. Discuss the effect of traffic improvements or other mitigation measures on air quali~.' impacts. Note: lf the project involves 500 or more parldng spaces, consult EA I,g Guidelines about whether a detailed air quali~.' analysis is needed. The increased traffic will generate a corresponding increase in carbon monoxide levels and other vehicle-related air emissions. Baseline air quality monitoring or predictive air quality modeling has not been scheduled at this time, and no measures to mitigate air quality impacts have been considered. The project is expected to have a negligible impact on air quality. 23. StatiOnary Source Air Emissions Describe the type, sources, quantities and compositions of any emissions from stationa~, sources of air emissions such as boilers, exhaust stacks or fugitive dust sources, lnchtde any hazardous air pollutants (consult EA FF Guidelines for a listin~ and an.v greenhouse gases (such as carbon dioxide, methane, nitrous oxide) and ozone-depleting chemicals (chloro-fluorocarbons, hydrofluorocarbons, perfluorocarbons or sulfitr h~cafluoride). Also describe any proposed pollution prevention techniques and proposed air pollution control devices. Describe the impacts on air quality. No stationary source air emissions, such as boilers, exhaust stacks or dust sources, are anticipated as a result of this project Page 16 W Westwood Professional Services, Inc.