Dedicated Short Range Communications (DSRC) is a two-way, short-range wireless communications technology designed for the auto industry. Similar to Wi-Fi, DSRC allows vehicles to wirelessly exchange data with other vehicles and traffic signals at a range of around 900 feet. The DSRC’s primary function is to assess the surrounding environment, based on precise data exchanges with other DSRC-equipped vehicles and roadside hotspots. The more vehicles equipped with DSRC devices, the more effective the technology is. When all cars in an area have V2X, the vehicles have 360-degree situational awareness.
The embedded computing device in each car can use information about nearby vehicles to calculate its current and future positions. This can help predict hazardous situations, and then alert drivers of hazards to avoid crashes. Cars with DSRC can also “talk” with traffic signals to tell you how many seconds you have left at a red or green light.
It can also tell you what speed to drive (under the speed limit, of course) to make all the green lights. That could mean an automotive future with better fuel efficiency, fewer emissions, and reduced driving time.
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