SUMMIT COUNTY — iPhone and iPod Touch users considering whether to drive home after a few cocktails can get a better idea of their bodies' alcohol content through an application from the Colorado Department of Transportation.

The “R-U-Buzzed BAC Calculator” figures weight, gender and how long one has been drinking to calculate an estimated blood alcohol concentration number.

The estimate doesn't take food consumption, medication, health and psychological conditions into account, according to a CDOT press release.

The application suggests when a person shouldn't drive and offers phone numbers of local cab companies.

It launches at a time when Colorado State Patrol and other agencies are increasing drunken driving enforcement.

“Over the Thanksgiving weekend, at least 455 people were arrested as a result of increased enforcement as reported by 38 local law enforcement agencies and the Colorado State Patrol,” according to the press release.

— Robert Allen