A Review of Speed ​​Management Strategies

Transportation professionals and policymakers need to find a way to manage drivers' speed on the road. During this guide, we outline some of the most popular speed management strategies, including speed limit road signs.

Transportation professionals and policymakers are tasked with finding a way to prevent and reduce car crashes and their severity. Over 1.25 million people die each year on the road across the world, and speed is one of the biggest causes of car crashes, impacting both the crash But how exactly do professionals and policies manage the speed of drivers on the road? Here are some of the most common speed management strategies:

● Speed ​​cameras. One of the most popular speed management strategies is the use of speed cameras. Research shows that speed cameras can reduce the number of accidents involving injuries by up to 51 per cent. These speed cameras can reduce both fatal and non -fatal traffic injuries, with a 21 per cent reduction in the fatality rate per 100,000 vehicles. Speed ​​cameras are reasonably effective at decreasing the speed of cars, as well as the number of crashes and the number of traffic injuries and fatalities.
● Engineering schemes. Engineering schemes involve physically changing the layout of the road to reduce the speed of the vehicles. These engineering schemes or measures fall into two major groups, including schemes with vertical deflections and schemes with horizontal deflections. Schemes with vertical deflections tend to reduce car accidents more, especially when compared with speed cameras and systems with horizontal deflection. Horizontal schemes are less effective, but the impact of horizontal and vertical schemes becomes synergistic when used in combination.
● Intelligent speed adaptation. Also known as ISA, brilliant speed adaptation is any system that does not allow the car to exceed the safe or legally enforced speed. For example, in a speeding situation, the car speed is automatically reduced, or the driver is alerted. This system helps drivers maintain a safe and legal speed along the driving time, and passive methods, like buzzers, ear cons, beeps and visual and auditory messages, have a positive impact on the speed limit compliance of drivers.
● Speed ​​limits and zones. Speed ​​limit road signs are one of the most commonly used speed management methods in most places around the world. Speed ​​limits tend to be based on road characteristics and surroundings like road surface, curvature, width and more. Research shows that if the speed limit Is not compatible with the road characteristics, the drivers are less likely to comply with it. Setting a lower speed limit tends to be a useful way to reduce drivers' speed, but the speed limit road signs should repeat more frequently in the zone.
● Vehicle activated signs. Also known as VAS, vehicle activated characters are a kind of traffic sign mainly used for hazard warnings or speed limit advisory. The signs are deployed on the side of the road to alert drivers about speed limits and dangerous situations. Research Introducing the vehicle-activated symbols in an inter-city highway increases the likelihood of speed limit adherence in a small group of drivers, according to a. Has shown a positive and significant impact of the vehicle activated signs on drivers' speeding behavior and traffic safety . recent study.