Answer: speedbump

AnswerCrossword Clue
SPEEDBUMP

Traffic slower-downer

SPEEDBUMP

Parking lot feature

SPEEDBUMP

Traffic "calming" device

SPEEDBUMP
Parking-lot feature
SPEEDBUMP
Traffic slower
SPEEDBUMPPrivate road feature
SPEEDBUMPHigh school parking lot fixture
SPEEDBUMPLeadfoot deterrent