4 ms·
They're focussed on the heavily used sections though, ie where they are more likely to be encountered. By that measure (kms driven), they're much more common.
by kitd 6y ago
They're focussed on the heavily used sections though, ie where they are more likely to be encountered. By that measure (kms driven), they're much more common.
- thinkingemote 6y agoI imagine that they would be on the motorways?
- tim333 6y agoCongested bits of motorway and multi carriageway roads often.