For the first proper railway, the Liverpool and Manchester of 1830, it was not clear whether locomotive traction would work, and the railway was designed with steep 1 in 100 gradients concentrated on either side of Rainhill, just in case. Had cable haulage been necessary, then inconvenient and time-consuming shunting would obviously have been required to attach and detach the cables. The Rainhill gradients proved not to be a problem, and in the event, locomotive traction was determined to be a new technology with great potential for further development.