Replace bus By | November 10, 2021 | in Vote Up 0 Vote Down Answered Public Public Private Questions Anonymous asked November 10, 2021 If rer b not available is there any bus replace at 5 am ? 1 answer Vote Up 0 Vote Down Public Ben ⋅ Staff ⋅ November 10, 2021 If the RER B is not running due to rail construction, yes, there will be replacement buses. Otherwise, the RER B will operate normally from 5am onwards. #1 Please login or Register to Submit Answer Username or Email Address Password Remember Me