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Road infrastructure in Japan

Statistics report on road infrastructure in Japan

This report presents graphs and tables about the road infrastructure in Japan. It focuses on fundamental survey data of roads, bridges, and tunnels, providing moreover key figures for road construction and maintenance works. Furthermore, it offers insights into the Japanese public opinion on roads.

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Table of contents

Overview

5
  • Basic Statistic Length of roads in Japan 2014-2023
  • Basic Statistic Area of roads in Japan 2015-2023
  • Premium Statistic Length of road bridges in Japan 2014-2023
  • Basic Statistic Length of tunnels in Japan 2014-2023
  • Premium Statistic Number of motor vehicles in use in Japan 2016-2025

Roads

5
  • Premium Statistic Length of standard-improved roads in Japan 2014-2023
  • Premium Statistic Distribution of standard-improved roads in Japan based on length 2023, by width
  • Premium Statistic Length of roads in Japan 2023, by road type
  • Premium Statistic Distribution of roads in Japan based on length 2023, by pavement
  • Premium Statistic Length of roads in Japan 2023, by prefecture

Bridges

5
  • Premium Statistic Number of bridges in Japan 2014-2023
  • Premium Statistic Number of bridges in Japan 2023, by superstructure material
  • Premium Statistic Number of bridges in Japan 2023, by structure
  • Premium Statistic Length of road bridges in Japan 2023, by prefecture
  • Premium Statistic Distribution of road bridge soundness in Japan 2025

Tunnels

5
  • Premium Statistic Number of tunnels in Japan 2014-2023
  • Premium Statistic Number of tunnels in Japan 2023, by length
  • Premium Statistic Length of tunnels in Japan 2023, by interior
  • Premium Statistic Length of tunnels in Japan 2023, by prefecture
  • Premium Statistic Distribution of road tunnel soundness in Japan 2025

Maintenance

4
  • Premium Statistic Investment value in public roads in Japan FY 2013-2022
  • Premium Statistic Length of newly paved sections of public roads in Japan FY 2014-2022
  • Premium Statistic Maintenance rate of roads in Japan 2023, by type
  • Premium Statistic Length of maintained public road sections in Japan FY 2022, by maintenance work

Traffic congestion

4
  • Premium Statistic Most congested national expressways in Japan 2019
  • Premium Statistic Most congested urban expressways in Japan 2019
  • Premium Statistic Distribution of lost time in traffic on national expressways in Japan 2019, by cause
  • Premium Statistic Share of people regularly involved in traffic jams in Japan 2021

Public opinion

4
  • Premium Statistic Leading measures for roads citizens wished to see reinforced in Japan 2021
  • Premium Statistic Most common nuisances due to automobile traffic Japan 2021
  • Premium Statistic View on the funding of expressway maintenance and renewal costs in Japan 2021
  • Premium Statistic View on the relation between expressway tolls and traffic jam in Japan 2021
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