MDOT recommends urban-diamond redesign for I‑75 and 8 Mile Road interchange

The Michigan Department of Transportation recommended an urban-diamond interchange as the preferred alternative for the I‑75 and 8 Mile Road interchange in a feasibility study that evaluates traffic, safety and community connectivity for the Detroit–Hazel Park border.

The study recommends the urban diamond after comparing three conceptual alternatives — a diverging diamond, an urban diamond and a single-point urban interchange — against the existing configuration. MDOT said the urban diamond best balances vehicle operations with improved pedestrian and bicycle access and better local connections across 8 Mile Road.

MDOT identified three primary goals for the study: address recurring congestion on I‑75 (including consideration of adding a fourth through lane in each direction), improve safety and mobility for all users including pedestrians and bicyclists, and respond to community preferences for improved cross-street connections and streetscape enhancements. The project area covers I‑75 mainline and service drives and 8 Mile Road (M‑102) from John R Street to Dequindre Road and from Maxlow Avenue to Lance…