The US Department of Transportation (DOT) has announced six winners in a national competition for the best ideas for using wireless technology in car-to-car communication.

"The winners of this competition have given us ideas that will help build the transportation system of the 21st century,” said US Transportation Secretary Ray LaHood.

Entries in the Connected Vehicle Technology Challenge had to show an innovative use for dedicated short-range communications (DSRC), a wireless technology similar to WiFi. Entries could be submitted on the competition website, where registrants could ALSO vote.

The US administration hopes connected-car technology will reduce accidentsThe following are the winning submissions:

Matthew Henchey and Tejswaroop Geetla, University of Buffalo, Emergency Response Application of DSRC Technology. A real-time accident awareness system that accelerates emergency response and assists with traffic management. Vehicles in a six-car pileup automatically inform emergency responders and traffic management centers.

Norio Komoda, Jennifer Smoker, and Ariko Komoda, Sakura Associates, Connected Vehicle Proactive Driving. A driver guidance system that collects and uses accident locations and types to help drivers choose safer routes. A driver is alerted to an upcoming intersection with frequent rear-end accidents and has the option of choosing an alternate route.

Venkatesan Ekambaram, Kannan Ramchandran and Raja Sengupta, University of California Berkeley, Robust GPS: Enhancing Accuracy and Security Using DSRC. Using DSRC signals on board vehicles to improve weakened positioning information and to correct illegally “jammed” Global Positioning System (GPS) signals.. This enables DSRC-equipped vehicles to automatically correct the GPS positioning of other similarly equipped vehicles.

Doug Lundquist, University of Illinois Chicago, Pollution Credit Trading in Vehicle Ad Hoc Networks. An automated system for trading pollution credits among vehicles in which the level of pollution allowed per vehicle is capped and credits are given to less-polluting vehicles. A low emissions vehicle can accumulate credits that it automatically sells to a higher emissions vehicle.

Michael Todd, Jay Farrell and Matthew Barth, University of California Riverside, Using DSRC Signals for Improving Vehicle Position Estimates. A position-estimating system that blends inputs from GPS and DSRC links to roadways to improve location measurements. A GPS-equipped vehicle would be able to determine its location to within one meter by communicating with devices embedded in the roads.

Selected by voters: Lee Tupper, Rahul Amin, Fan Yang and Parth Bhavsar, Clemson University, Integrated Intelligent Transportation Platform. A system that enables a vehicle to help with trip and day scheduling, from choosing a route to reserving a parking space.

The selected participants will be honored speakers at a special session at the 18th World Congress on Intelligent Transportation Systems. A representative from each selected team will receive paid registration, transportation, meals, and accommodations for the Intelligent Transportation Systems World Congress, which will be held in Orlando, Fla., on Oct. 16-20.