Bans on texting and hand-held cellphone use are raising awareness of distracted driving, but inconsistent enforcement is a significant barrier to solving the problem. Thirty-four states now ban texting while driving while ten states and the District of Columbia ban all motorists from using hand-held cellphones while driving. Automakers, wireless providers and those creating smartphone applications are trying to set limits so their features are more likely to be used safely. The U.S. Department of Transportation is conducting research on emerging vehicle-to-vehicle and vehicle-to-infrastructure technology that could play a key role in preventing accidents from driver distraction in the future.