Roadside greenery enriches the surroundings and has a calming effect on people. It also has various other roles, such as enhancing the urban environment, creating attractive urban landscapes, helping traffic to move safely and smoothly, and protecting residents from fires in times of disaster.
Of the approximately 2,238km (as of April 1,2017) of roads administrated by the TMG, some 1,369 km is furnished with roadside trees, while greenery onmedian strips and traffic islands total an area of about 231 hectares.
Ginkgo trees (In front of the Meiji Memorial Picture Gallery))
Tulip trees (In front of the Geihinkan state guest house)
Roadside Tree Enhancement
The Bureau will now implement a detailed maintenance program for the roadside trees that have been planted, and devote further efforts to high quality
maintenance and management in order to create a lush roadside environment befitting a mature city.
In response to the need for measures to protect spectators and competitors from the summer heat at the Olympic and Paralympic Games Tokyo 2020, the Bureau is implementing measures such as systematic pruning to ensure that ample shade is created by trees along metropolitan roads, mainly around competition venues and the marathon course, in preparation for the Games.
Ordinary Metropolitan Road 132
Making Roadside Trees More Resilient to Disaster: Large-Diameter Tree Regeneration Program
On routes particularly important from the perspective of disaster preparedness, the Bureau has been implementing a plan for the period from fiscal 2012 to fiscal 2020 to assess roadside trees 90cm or more in circumference and rehabilitate and replace weakened trees and those that could topple over in the event of a disaster, so that they will not block emergency vehicles, vehicles transporting supplies and the passage of evacuees.
A roadside tree toppled by strong typhoon winds blocks a roadway.
Beautiful roadside trees that are resilient to disaster
Promotion of Roadside Tree Inspections
In implementing this program, the Bureau has compiled a Roadside Tree Inspection Manual to follow. The Bureau has also distributed this manual to all national road offices and municipalities in Tokyo, and is offering consultation and guidance on the subject.