Japan cuts speed limit on most residential roads to 30 kph

Drivers navigating Japan’s residential streets now face a sharp change: the default speed limit on most narrow “living roads” has fallen from 60 to 30 kilometers per hour.

The new rule covers roads commonly found in residential and commercial neighborhoods and around schools. It applies when a road has no designated speed-limit sign or marking, no center line, and no divider or central barrier, and is generally less than 5.5 meters wide. Roads already marked with limits such as 40 kilometers per hour are not affected.

Japan will not install new speed-limit signs everywhere to mark the change. A driver who continues at 60 kilometers per hour could be treated as traveling 30 kilometers per hour over the limit, potentially leading to license suspension and a fine of up to 100,000 yen.

The revision comes more than 60 years after the 1960 Road Traffic Act established a default 60-kilometer-per-hour limit for roads without signs or markings. The National Police Agency said traffic accidents have declined nationwide, but accidents on roads narrower than 5.5 meters have not fallen at the same pace.

About 287,000 traffic accidents occurred across Japan last year, causing roughly 2,500 deaths. The share of pedestrians and cyclists killed or injured in accidents on these narrow roads is about twice the share on wider roads. Police data from the five years through 2009 showed that pedestrians struck by vehicles traveling 20 to 30 kilometers per hour at non-intersection locations had a 0.9% fatality rate. At 50 to 60 kilometers per hour, the rate rose to 17.4%. The government concluded that fatality risk increases sharply above 30 kilometers per hour, prompting the lower limit.