Before installing traffic barriers, it's crucial to first clarify what needs to be blocked and the form of implementation. If the purpose is to prevent pedestrians from crossing the street recklessly, one must weigh the location and length of the barriers. It may not be necessary to set up barriers along the entire route. Instead, consider the distance to the pedestrian crossing on the opposite side of the street and place barriers on the roadside.
 
If traffic barriers are set up to block motor vehicles, the intention is to prevent illegal traffic behaviors. Therefore, the barriers must allow for flexible lane allocation, emergency access, lane-specific warnings, and individual lane openings and closings, as well as guidance issues. Hence, installing traffic barriers in the middle of the road should not be a one-size-fits-all approach, to avoid severe congestion at both ends.
 
When installing traffic barriers on roads, one must consider the specific usage of the road and the maintenance costs associated with its later use. Only by properly setting up traffic barriers can we truly achieve the orderly promotion of urban road traffic development while ensuring the safety of citizens' travel.