EnvironmentOne of the world's most polluted cities revises restrictions, keeps EU standardsA street in Hanoi filled with motorbikes, which dominate the city's transport. Authorities are seeking to curb gasoline-powered vehicles as part of efforts to tackle worsening air pollution. (Photo by Ken Kobayashi)MAI NGUYEN and YUJI NITTAJune 17, 2026 11:52 JSTHANOI -- Authorities in Vietnam's capital have unveiled a revised road map for restricting gasoline-powered motorcycles, adopting a softer, more gradual approach to avoid major disruption in one of the world's largest motorbike cities.