Seminary Road Interchange Modification Report

Project Location: Fairfax County and Alexandria City

Client: VDOT Mega Project

Project Description: To facilitate the Interchange Modification Report for the Seminary Road interchange at I-395, crash history and trend are to be collected and studied for the area including from two immediate interchanges at VA Route 7 and Duke Street on I-395. The crash analysis can identify the hot spot and hazardous locations, which to be alleviated or addressed by the interchange design.

T3D’s Role in Project: Collect historical crash data, including crash time, crash type, crash location, crash frequency. Analyze crash data by type and frequency on segments along I-395 between VA Route 7 and Duke Street and identify problematic areas and cause. Graphically present the crash data using ArcGIS software.