Lightning has resulted in there being no trains at present between Newmarket and Cambridge. Greater Anglia are putting on rail replacement buses to Cambridge North (not on their rail route from Newmarket), but NOT to Cambridge's main station (which is where Ipswich services normally terminate). According to the GA website: "there is no rail replacement vehicle access permitted at Cambridge". As a bald statement, this is clearly nonsense - Cambridge hosts a seemingly never-ending series of rail replacement buses (including some that operate for GA). Can anyone translate the GA "explanation" into something meaningful? Thanks in advance.