Your next car may not allow you to speed on the highway

When it comes to limited-access highways, not everyone buys into the conventional wisdom that “speed kills.” In some places, “increasing the speed limit (will) make the roadways safer,” contends safety expert Tom Sohrweide. He claims his studies show that what’s more important is keeping traffic moving at consistent speeds, with relatively minor gaps between the fastest and slowest vehicles. Sohrweide doesn’t propose eliminating speeds entirely but recommends they be set at the 85th percentile, or the speed at which 85 percent of traffic is moving.