Design standard:
Road grade: urban trunk road
Design speed: 50km/h
Planned road width: 46m
Design load: pavement standard is BZZ-100; Bridge and culvert standard: urban level A
Design life: 15 years
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Cross section design:
The width of the standard section of the original design road is 46m, and the width of the widened section of the intersection is 58.8m. The design road width of this section is controlled within the scope of the original design road width, and the bridge width is 16m two-way four lane.
The bridge width is composed of 0.5m (anti-collision railing)+0.5m (lateral clearance)+6.75m (motorway)+0.5m (double yellow line)+6.75m (motorway)+0.5m (lateral clearance)+0.5m (anti-collision railing)=16m.
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Designed in 2014, there are 27 CAD design drawings in total.