Cities are using smart traffic technology to reduce energy waste and improve road safety as traffic congestion in cities becomes a growing problem. This helps motorists and passengers save time, lowers emissions and traffic jams.

The technology behind it is based on software and hardware. The first is the subcomponent that executes, while it is used as the command and control center. Both are complemented with advanced sensors and processing technologies, such as ANPR (automotive plate recognition) that collects information regarding vehicle movements and can identify road signs.

Depending on the software utilized, data can be processed on the device by smart traffic lights or transferred to cloud. The latter allows for more advanced analysis and modeling to reduce congestion in traffic and to harmonize the schedules of public transportation. According to Carnegie Mellon University, this could cut travel time by 25 percent, and wait times for signals are reduced by 40%, and emissions are cut by 20%..

In addition to decreasing the time it takes to control traffic signals A smart traffic light system can increase the flow of pedestrians and micromobility vehicles, such as e-bikes and e-scooters. They’re not able to adhere to traditional traffic law regarding preemption of signals. In London for instance, e-scooter crashes increased 2800% during the first half of 2021, and therefore it is vital to consider them when determining traffic light control.

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