这是哪个国家的路考? 你的看Ontario的在http://www.driving-test-success.com/onewayroads.htm找到一条:
You must not reverse in a one-way road other than to manoeuvre normally. It is an offense to reverse any further than necessary, so you may not reverse through a one-way section to take a short-cut.
是不是法律依据不知道,先睡觉去了。