Walking
1.4m/s (5km/h)
Running
3m/s (11km/h)
Cycling
5.5m/s (20km/h)
Cars in built-up ares
13m/s (47km/h)
Cars on moterway
31m/s (112km/h)
Trains
55m/s (200km/h)
Aeroplanes
250m/s (900km/h)
Ferries
15m/s (54km/h)
Wind speed
5 - 20m/s
Sound in air
340m/s