In the latest edition of 'Calling All Stations, ' Christian Wolmar's asks whether his sceptical view of self-driving vehicles is vindicated by the report from the House of Commons Transport Committee [1:59].

Another topic treated here is the new default 20mph speed limit on residential streets in Wales - is this a way to better road safety or economic ruin [9:50]?

Will political choices leave the breathtaking HS2 Old Oak Common station as the terminus of a bizarre Acton to Aston railway [15:37}?

 

Christian and co-presenter Mark Walker set out to answer these questions.