Do Higher Speed Limits Increase Car Accidents?
So do higher speed limits actually increase vehicle crashes? We decided to take a closer look.
Speed limit laws date back to 1901, according to the IIHS. While speed limits have traditionally been handled by the states, a national maximum speed limit of 55 mph was put in place in the 1970s and 1980s. However, this was repealed in 1995, and since then speed limits have increased.
Right now, more than 20 states have maximum speed limits of 70 mph, while more than 10 states have a speed limit of 75 mph on some roadway systems.
While a direct state-to-state comparison on car accident numbers and speeding is difficult since some states have higher populations, there is some interesting data out there about a possible correlation between speed limits and vehicle crashes.
According to the IIHS, raising speed limits increases vehicle deaths because people often drive faster than the speed limit.
Why speeding increases the chance of car accidents
It’s not hard to understand why speeding could cause a car accident. It’s easier for a driver to lose control and increases the distance a driver needs to stop a vehicle when braking.
Speeding also increases the severity of injuries in an accident, according to the IIHS. The IIHS reports that when impact speed is increased from 40 mph to 60 mph, the crash energy that needs to be managed increases by 125%.
There is research from the 1960s that suggests that speed variation is the real danger. It was found that vehicles traveling on two-lane rural roads traveling much faster or much slower than average were more likely to be involved in car accidents—but also that involvement in severe car crashes did increase with speed.
Staying safe if another car is speeding
If you are driving and another car is speeding, try to give them plenty of space. It’s easy for a speeding driver to lose control of the car.
If you are in the left lane and it’s clear that a driver wants to pass you, move over so they can.
In fact, the average Jerry user saves $879 on car insurance a year.