“Only 5% of Congestion Is Caused by Poor Signal Timing” — Is This 20-Year-Old Figure Still Valid?
“Only 5% of Congestion Is Caused by Poor Signal Timing” — Is This 20-Year-Old Figure Still Valid?无评论
In 2004, the U.S. Federal Highway Administration (FHWA) estimated that only about 5% of traffic congestion was caused by poor signal timing. That figure was widely cited for years, but more than two decades later, FHWA has not published a new national…
Roundabouts vs. Signalized Intersections: Is Comparing Total Conflict Points a Valid Metric?
One of the most widely cited arguments in traffic engineering is the comparison between traditional intersections and roundabouts. The problem is not the numbers themselves—it is how they are interpreted.