Traffic safety measures and environments in Japan from 1970 to 1995
| 1970* | 1975 | 1980 | 1985 | 1990 | 1995 | |
|---|---|---|---|---|---|---|
| *Data of Okinawa are not included. †Data in 1970 are not available. | ||||||
| Safety facilities | ||||||
| Proportion of local roads with pavements (%) | 0.7 | 1.4 | 2.6 | 3.7 | 5.2 | 6.2 |
| Proportion of main roads with pavements (%) | 7.1 | 13.1 | 19.6 | 25.9 | 31.8 | 36.0 |
| Number of pedestrian crossing per road length (/1000 km) | 132.3 | 321.6 | 516.3 | 640.2 | 722.0 | 773.3 |
| Number of traffic signals per road length (/1000 km)† | – | 59.9 | 91.0 | 106.3 | 122.2 | 138.8 |
| Living environments | ||||||
| Number of public parks per habitable area (/100 km2) | 11.3 | 17.5 | 27.9 | 38.3 | 46.3 | 53.9 |
| Traffic volume (100,000 vehicle km/12 h) | 4350.0 | 4959.4 | 6074.7 | 6784.6 | 8040.1 | 8806.1 |
| Lifestyle | ||||||
| Proportion of children attending preschool (%) | 78.2 | 89.4 | 89.0 | 91.1 | 94.8 | 94.3 |
| Law enforcements | ||||||
| Number of infringement notices of traffic violation/traffic volume (/100000 vehicle km/12 h) | 1213.6 | 2048.4 | 1916.5 | 2016.9 | 1124.4 | 949.7 |
| Urbanisation | ||||||
| Proportion of population living in densely inhabited districts (%) | 53.5 | 57.0 | 59.7 | 60.6 | 63.2 | 64.7 |
| Emergency medical service | ||||||
| Number of ambulances per habitable area (/100 km2) | 1.1 | 2.4 | 3.3 | 3.6 | 3.8 | 4.1 |