Why is a weave lane on a freeway considered dangerous?

A weave lane on a freeway is considered dangerous primarily because it serves as both an entrance and an exit lane. This design creates a situation where vehicles are merging in and out of the flow of traffic in close proximity, leading to higher chances of collisions. When vehicles enter the highway while others are trying to exit, there can be confusion and reduced reaction time, increasing the risk of accidents.

The presence of vehicles that may be accelerating to merge with fast-moving traffic as well as those decelerating to exit complicates the dynamics of the lane. Drivers must be particularly vigilant in these areas, as they need to monitor both merging and exiting vehicles in a confined space. This dual function of the weave lane necessitates careful navigation and heightens the need for drivers to signal their intentions clearly and check their mirrors frequently, contributing to the overall dangers associated with such lane configurations.