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Hinsdale police explain crash-based stop-sign standards; commission seeks clearer public guidance
Summary
Deputy Police Chief Tom Lillie told Hinsdale's new Public Safety and Transportation Commission that the village follows the Federal Highway Administration's Manual on Uniform Traffic Control Devices (MUTCD) when evaluating stop-sign and 4-way stop warrants, but that engineering judgment and pedestrian factors can justify action even when strict crash thresholds are not met.
Deputy Police Chief Tom Lillie told Hinsdale's new Public Safety and Transportation Commission that the village relies on the Federal Highway Administration's Manual on Uniform Traffic Control Devices (MUTCD) as a primary guide when evaluating whether to add stop signs or convert two-way stops to four-way stops.
Lillie described crash-based triggers historically used to justify all-way stops (for example, five right-angle collisions within 12 months or six crashes within 36 months) and said the department also uses other measures—traffic…
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