Why is the speed limit on the He-Da Expressway set at 80 km/h?
2 Answers
The design speed of the He-Da Expressway is 100 km/h, but in areas such as the curved section of the Dongjiagou Interchange and the Jinshan Tunnel, the speed limit is reduced to 80 km/h. This is primarily due to the technical conditions of the interchange and tunnel sections. Below is relevant information about the speed limit: 1. Introduction: Speed limits typically refer to the regulation of vehicle speeds within a specified range over a certain distance of the road. 2. Purpose: The main objective is to preemptively alert drivers to reasonably control their speed in the upcoming sections of the road, prevent the dangers of speeding, and ensure driving safety. Speed limits are an indispensable and most critical aspect of road transportation safety.
The speed limit on the He-Da Expressway is set at 80 km/h primarily due to the complex road terrain, featuring numerous curves and slopes, where driving too fast can easily lead to accidents. I've driven this section many times, and in winter, it often snows and ices over, with poor visibility, so slowing down helps prevent skidding or rear-end collisions. Additionally, there are several tunnels and bridges along the expressway, and the speed limit is set for engineering reasons to maintain structural safety. The government adjusted the speed limit after data revealed a high number of accidents here, reminding everyone to stay cautious. In the long run, driving slower also reduces tire wear, saving me a lot on maintenance costs—safety is the top priority.
