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City engineer outlines traffic-impact analysis process; commission asks for clearer seasonal adjustments and executive summaries
Summary
City Engineer Emil Schmidt told the Planning and Zoning Commission June 24 that traffic-impact analyses (TIAs) are used to assess how proposed developments affect roadway operations and to identify needed off-site improvements or mitigation.
Emil Schmidt, city engineer for Apache Junction, presented a primer on traffic-impact analyses (TIAs) to the Planning and Zoning Commission on June 24, explaining when the city requires TIAs, what they evaluate and how the studies inform mitigation and development conditions.
Schmidt said a TIA evaluates a proposed development’s effects on the surrounding roadway network—examining existing conditions, trip generation, trip distribution and assignment, capacity analysis, crash history and potential mitigation such as turn lanes, signal timing changes and access controls. He said thresholds…
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