Research shows left turns at intersections are dangerous and slow traffic. Benjamin Rondel/The Image Bank via Getty Images Vikash Gayah: When you make a left turn, you have to cross oncoming traffic.

Traffic flow management at signalized intersections remains a cornerstone of urban transport research, combining traditional traffic theory with modern data analytics and optimisation techniques. This ...

Planner vs. Engineer is a well-known professional rivalry in the infrastructure world. The arguments are sometimes friendly, sometimes hostile, sometimes about important issues, sometimes ...