Are regular passengers (i.e. not affliated with Ford in any way) permitted to take the 175 bus into the Ford plant in Dagenham? There is a large sign on the final stretch of road saying "NO ACCESS TO THE PUBLIC". The Google Street View Car managed to drive up to the Ford gate but this is before the terminus.

Slightly related question - can one pass through Dagenham Dock station from the EL2 terminus to Chequers Lane?