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smart highways, virginia tech's center for transportation and the virginia department of transportation (vdot), in conjunction with the fcc is spearheading ivhs research , platoons of auto piloted cars and trucks will zip along highways, guided by on-board and in-road sensors that maintain safe distances between vehicles and keep them from drifting sideways. vehicles will automatically adjust their speed and positions relative to others for safe braking, passing, or lane changing, new radio spectrum will help prevent crashes, bring important real-time information into cars and let drivers concentrate on driving, common occurances, car manufactures could use a beep, a dashboard light or an electronic voice to tell drivers when it's safe to change lanes, or when to put on the brakes to avoid rear-ending the motorist in front, the collision avoidance system would help reduce fender benders and rising insurance rates, on board computers used in conjuction with gps satellite tracking, night-vision, magnetic sensors and other technology can drive our cars for us, intelligent vehicle highway systems, goal is to make driving safer, more energy-efficient, and more environmentally responsible, sensors can automatically warn a motorist when another car is approaching, you're on interstate 95 on and your tired after along night of parting. its about 5 00am and your feeling like your not going to make it home. you aren't aware that, several miles ahead, a tractor trailer has overturned and has thrown debris onto the middle of the highway, making it impossible to pass. thanks to its all-weather night vision radar system, it senses the threatening obstacle and emits several urgent beeps. the words, obstacle ahead, flash on your windshield. moving into the left lane, you drive warily onto the shoulder and stop and catch the much needed z’s while waiting for the police to clear the highway, scenarios like, smart highways in the not-so distant future