Road rules / 🇬🇧 speed
Why are variable speed limits used on busy stretches of motorway?
✓ ANSWER
To keep traffic moving smoothly and reduce bunching in congestion
Variable mandatory limits smooth traffic flow, which reduces stop-start bunching and can cut journey times.
All the options
- ✓To keep traffic moving smoothly and reduce bunching in congestion
- ✗To raise money from safety camera fines
- ✗To give slower vehicles time to reach the left lane
- ✗To test how drivers respond to gantry signals
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