Cars, goods vehicles not exceeding 1525 kg unladen weight, invalid carriages, motorcycles and pedal cycles may be parked without lights on a road ( or lay-by ) with a speed limit of 30 mph ( 48 km / h ) or less if they are at least 10 metres ( 32 feet ) away from any junction, close to the kerb and facing in the direction of the traffic flow in a recognised parking place or lay-by
32.
It was sold to SELNEC ( later Greater Manchester ) PTE who numbered it EX61 in its experimental series, registering it XVU387M . The Chloride battery pack weighed four tonnes and the vehicle ( unladen but for those batteries ) weighed 13 tonnes ( almost double the unladen weight of the Gardner-powered version ) so payload was limited, by the axles fitted, to one tonne which equalled a capacity of B41D + 9 standing and although it featured regenerative braking the bus ( like Lucas battery-electric Seddon Midi EX62 XVU364M which followed in 1975 ) was not a success.
33.
If that surface is pressed into some soft dirt-then we have 30, 000kg spread over 5m 2 which is 0.6kg / cm 2 That's less than the 0.962kg / cm 2 that your source quotes . . . so probably either I've over-estimated the width of the tracks somewhat or 30, 000kg is the unladen weight and the 0.962kg / cm 2 number is for a tank full of ammo, fuel, etc . But when you look at the protruding U-shaped surface on each tread-that's gotta be no more than a quarter of the area of the tread itself . . . that suggests that the pressure on the contact area on a hard surface is four times higher than on a soft one.
