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About "Zone 30"

Updated: March 3, 2022

What is "Zone 30"?

Zone 30 regulates the maximum speed within the zone to 30 km/h and combines safety measures to limit the speed of vehicles in residential areas surrounded by highways, etc. It is a traffic safety measure for the purpose of protecting safety. Cars should refrain from passing through the area, observe the speed limit of 30 km/h and drive safely.

Why is there a maximum speed limit of 30km/h?

In the case of a collision between a pedestrian and a vehicle, the fatality rate rises sharply when the vehicle speed exceeds 30 km/h. In addition, since there are many accidents involving pedestrians and bicycles on community roads, we will limit the speed to 30 km/h to reduce the occurrence of accidents.

Road sign indicating zone 30, road marking

At the entrance to Zone 30, a speed limit sign and a symbol mark signboard will be installed and the road surface will be marked to indicate the start of the regulation to drivers.

Safety measures within Zone 30 areas


Speed control with deceleration marks, colored pavement, and post cones


Pedestrian protection with guard pipes

"Zone 30" designated district in the city

In the city, the Hyakumura district, the Hyakumura, Higashi Naganuma, Daimaru, and Koyodai districts were designated as Zone 30, but on February 15, 2022, the Yanoguchi district was newly designated and designated as Zone 30 within the city. There are 3 districts.


Hyakumura district (designated in 2014)


Hyakumura, Higashi Naganuma, Daimaru, Koyodai area (designated in 2020)


Yanoguchi district (designated in 2021)

Inquiries about this page

Inagi City Urban Construction Department Management Section
2111 Higashi Naganuma, Inagi City, Tokyo
Phone: 042-378-2111 Fax: 042-377-4781

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Inagi city official mascot Nashinosuke Inagi
2111 Higashi Naganuma, Inagi City, Tokyo 206-8601
Open agency hours: 8:30 a.m. to 5:00 p.m. Main phone number: 042-378-2111 Fax: 042-377-4781
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