I seem to remember street lights must be every 180m/200 yards. We had lots of discussions about this when I joined pepipoo back in the late 2000's.
When I mentioned updating in my earlier thread the driver CPC course which, for those who are not aware, is 35 hours compulsory training for bus and lorry drivers that has to be undertaken over a five year period. Designed to improve driving standards and update professional drivers on road traffic law, H&S, economic driving etc. The driver must carry his CPC card at all times when driving a lorry or bus.Fine up to £1000 for not carying the card!