The Hanoi People's Council has not yet approved the low-emission zone project within Ring Road 1, citing insufficient documentation, including the proposal to restrict gasoline motorbikes by hour around Hoan Kiem Lake.

In the first four months of the year, the number of buses using clean energy in Hanoi significantly increased, exceeding 42% by the end of april, far surpassing the initial target.

A survey by the Hanoi People's Council reveals that 94-97% of motorbikes used by residents in nine wards within Ring Road 1 run on gasoline, with only 3-7% being electric.

Hanoi plans a low-emission zone pilot in central Hoan Kiem, citing existing vehicle restrictions, monitoring infrastructure, and a favorable environment for transition and impact assessment before broader expansion.