All crossings that experience hourly traffic, including pedestrian ______, should feature both bells and crossing gates.
A: crossings
B: ell
A: crossings
B: ell
举一反三
- More railroad crossings should feature ___________.
- More railroad crossing should feature _____. A: warning lights B: crossing gates C: fencing D: quiet zone
- __________ are extremely effective when approaching crossings of all types.
- Ungated _____ should only be permitted where the sight distance from the roadway exceeds 100 meters. A: fencing B: ailroad crossings
- An example of bad manners on the roads is______. A: slowing down to let a kid pass B: stopping suddenly at pedestrian crossings C: turning up side streets without giving signals ' D: unnecessarily giving way to other cars without warning those behind you