Can Diverted Traffic Damage Residential Roads in East Vancouver?

When a traffic-calming project closes a thoroughfare, the passing vehicles don’t simply disappear. They instead move - and, when they’re pushed onto residential streets, an important infrastructure question follows: were those roads built to handle the additional payloads?

Examining Diverted Traffic in East Vancouver

Residential roads are not intended to accommodate a surge of stop-and-go traffic - particularly when that traffic includes commercial vehicles. Delivery vans, garbage trucks, and other long-wheelbase models can undermine the stability of smaller streets.

A 2026 Minnesota Department of Transportation project provides a striking example. Researchers examined highway construction detours that redirected freight vehicles onto local roads. The study found that these detours accelerated pavement deterioration, shortened service life, and created additional repair requirements. It also showed that existing reimbursement formulas could vastly underestimate the cost of restoring roads after being exposed to diverted traffic.

There can also be effects beyond the pavement itself. Exposure to long-wheelbase models can increase wear around curbs, drainage structures, and utility covers, leaving them in more frequent need of replacement; and the scale of the potential problem becomes clearer when traffic volume increases dramatically. Minnesota's detour research highlighted situations where roads designed for limited heavy-duty vehicles suddenly carried substantially greater freight loads - with the infrastructure unable to accommodate the sudden surge. Full-closure calming left side-streets exposed to (expensive) damage. 

Vancouver's residential roads now bear the cost of traffic diversion. This isn't safety. This is a surcharge.

Sources

Minnesota Department of Transportation — Limiting Pavement Damage from Detours (2026)
Traffic Calming: Effectiveness of a Series of Road Humps on Home Zone Streets (2025)
FHWA — Traffic Calming ePrimer