Where is the shoulder? Where is the railway shoulder?

1. refers to the belt-shaped part with a certain width (including hard shoulder and protective shoulder) located from the outer edge of roadway to the edge of subgrade, which is used to maintain the function of roadway and temporary parking, and as the lateral support of pavement.

2. The main function of the shoulder is to protect the stability of the main structure such as the carriageway.

3. Provide a place for vehicles that need to stop temporarily due to mechanical failure or emergency.

4. Provide lateral margin, which is beneficial to safety and comfort.

5. For pedestrians and bicycles.

6. Provide the location of road facilities.

7. Work place of maintenance operation.

8. Under the premise of not destroying the highway structure, it can also be used as the location for burying underground facilities.

9. Improve the curve sight distance of the excavated section and enhance traffic safety.

10. Rainwater can be drained away from the roadway to reduce rainwater infiltration into the roadway and pavement damage.