What causes traffic slowdowns?

About half of all traffic slowdowns are caused by temporary traffic flow disruptions. These are the unwelcome surprises that take over part of the roadway, such as an accident blocking a lane, a construction zone causing a bottleneck, or inclement weather conditions that affect all drivers.

What is the main cause of traffic?

The all-too-common cause of traffic is humans. From distracted or drunk driving to drowsy driving or emotional driving, there are many dangerous scenarios — even with our opposable thumbs and large frontal lobes — that humans trigger on the road.