The Voorhees law of traffic: when overtaken slow cars seem to always catch up at a red light

UK researcher uses maths to explain seeming inevitability of phenomenon experienced by many motorists

It is a situation experienced by many motorists: one driver overtakes another only to find the slower car is right behind them when they reach a red light. Now a researcher has used mathematics to reveal why the situation feels inevitable.

Dr Conor Boland from Dublin City University has called his work “The Voorhees law of traffic”.