Precast traffic barriers serve as medians or guardrails that prevent vehicles from straying too far from the designated area within a roadway. You should consider any potential hazards that a vehicle could encounter and determine whether it would be safer for that vehicle to be stopped by a concrete barrier instead. While it is best to remove the hazard, there are many circumstances where it is not possible to do so. Examples include significant natural features like steep drop offs and lakes, or oncoming traffic on a narrow roadway. You should also consider incorporating traffic barriers in pedestrian areas, to create organized and therefore efficient patterns of foot traffic. The advantage of using precast traffic barriers is that implementation is fairly simple. In contrast to poured in place structures, precast installation can be completed with simple machinery and a small group of professionals.