Because when people go 120km/hr having that flow and speed helps prevent accidents. It is speed variance that causes accidents when you a combination of fast and slow drivers. Conditions can also affect how fast you should go when driving but if it is a clear dry day then driving at a speed you feel comfortable with should be allowed
Due to a study people are proven to six times more likely to get in an accident. The autobahn in Germany has no speed limit an has proven to be the safest highway.Slower limits guzzle gas because without the flow of traffic coming with higher speed limits, there is less stoping and going thus using less gas to start up again
The German autobahn has proven that higher speed limits can lead to overall safer roads, higher speed limits mean that those who wish to drive at a high rate of speed are free to do so without having to recklessly weave in between cars, those who are uncomfortable driving at high speeds should stay off these types of roads.
When a speed limit is set people tend to go 5-10 miles faster than the legal limit. For example, if the speed limit is 55, most people travel at 60 to 65 miles per hour. This is against the law in all forms possible. On roads during the winter and on bad roads raising the speed limit would allow people to go faster and raise the chance to get into an accident. NO!
There is a higher incidence of accidents on the highway when cars are traveling at higher speeds, so highways would be less safe and more dangerous with a higher speed limit. For safer highways, the speed limit should be lower, not higher. This would result in fewer accidents on the highway.
When speed limits are set at higher speeds, it creates more of an urgency in getting to ones destination rather than the journey being safe. Higher speed limits can create more accidents in areas that experience a lot of snow or extreme weather. Higher speed limits can also increase gas and car maintenance costs.
The safety of drivers on our nation's highways does not depend on high or low speed limits, but appropriate speed limits. Speed limits must always take into account the conditions of the route, from terrain to curvature to elevation and so on. All speed limits should be carefully established based on these conditions. Simply raising or lowering a speed limit does not improve safety.
In my personal experience, most drivers use the speed limit as buffer rather than an actual set limit to abide by strictly. Drivers generally go at around 10mph above what is technically legal. By raising the limit, we would encourage a more dangerous degree of speeding, which ultimate leads to more accidents and fatalities.