SALEM - Traffic signals in the City of Salem have been receiving upgrades, according to the Ohio Department of Transportation (ODOT).

The $500,000 traffic signal system project includes 12 signals located on State Street, both on the East and West Sides, within the city's limits.

Salem's Public Service and Safety Director Joe Cappuzzello told 21 News the project started in January to upgrade the software in the signals.

Cappuzzello said traffic has not and will continue not to be impacted as the upgrades continue.

He added the many benefits that come from upgrading the signal software, including more efficient traffic flow, fewer cars sitting and waiting at red lights, and less air pollution.

Cappuzzello said the project is more than halfway done and should be completed sometime in April.