FIX: Some road vehicles were missing a gear value
CHANGE: Recalibrate the speed of 'buses and coaches based on historical limits
CHANGE: Recalibrate the axle loads of road vehicles to fit with the new axle load system
CHANGE: Set the axle load limits for roads and tunnels
ADD: Tarmac city road
ADD: Bridleway (only suitable for walking transport: horses, livestock drovers)