WHAT ARE THE PROS AND CONS OF ALLOWING COUNTER FLOWS IN TRAFFIC CONTROL?
WHAT ARE THE PROS AND CONS OF ALLOWING COUNTER FLOWS IN TRAFFIC CONTROL? Allowing counter-flow lanes—also known as contraflow or reversible lanes—is one of the most controversial tools in traffic management. It is often compared to emergency surgery on a city’s road network: when properly executed, it can relieve congestion quickly; when poorly managed, it can create confusion and serious safety risks. The main advantage of counter-flow operations is efficiency. Traffic demand is rarely balanced. In many urban corridors, 70 percent of vehicles travel in one direction during peak hours while the opposite direction remains underutilized. By temporarily reversing selected lanes, authorities can increase capacity without building new roads. For developing cities where infrastructure expansion is expensive and slow, this approach can save billions in construction costs while improving travel time. Counter-flow operations are also valuable during emergencies. In large-scale evacuations cause...