about 4。一个中间双实线两边单虚线的道路限速是多少?
through road: motor road and motor way, recognisable by solid edge lines.
connecting road: recognisable by broken edge lines.
1)outside build up aread: middle line solid: 80km/h, not allowed farm vehicles and four wheel mopeds drive
middle line broken: 80km/h allow farm vehicles and four wheel mopeds drive
2)inside build up area: the edge line can be replaced by a kerb,broken line in middle, 70km/h
or no centre line: 50km/h
local roads: no lines no edges,
我从书上总结的,所以应该选80km/h
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