Observed arrival · 2026-10-15
MAST: Seeing Past the Left-Turn Blind Spot
A Melissa student's traffic-safety project explores using radar to help left-turning drivers see oncoming cars hidden by an opposing turn queue.
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- Drivers at obstructed left turns and local traffic-safety officials
- Worth noticing
- The site reports 13 left-turn crashes at SH 121 and Milrany Lane from 2021–2025, six involving injury.
Field notes
The project began as a team entry to the Presidential AI Challenge focused on camera-based signal timing; the site says it did not advance past regionals. Its creator returned to the work in summer 2026 with a narrower question about obstructed left turns. The research account credits Gregory Masota at NCTCOG with helping obtain crash summaries and INRIX turning-movement estimates, then describes comparisons using TxDOT's CRIS tool.
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