Before the end of the year, residents in Clay County will see some changes with stoplights.
Recently, the Indiana Department of Transportation (INDOT) Crawfordsville District began installing red arrow signal indicators for protected-only left turn signals.
The initiative is part of a six-year, district-wide cycle of Light Emitting Diode (LED) bulb replacement.
INDOT officials defined "protected-only" left turn signals as turns that can only be completed on a green arrow.
"Where you typically see yellow or amber (lights), which go to a complete red bulb, there will be arrows in all of those," INDOT Crawfordsville District Media Relations Director Debbie Calder told The Brazil Times. "In the actual signal, you will see arrows."
According to INDOT officials, when drivers see a red arrow at a protected-only left turn signal, they must treat the sign as they would a traditional circular red stop signal. Drivers must not turn at the signals until they see a green arrow.
Calder said INDOT began replacing signal indicators March 18, in Marion County.
According to Calder, the plan was to continue north through Hamilton, Boone and Clinton counties. Officials will replace the traditional circular red indicator in its protected-only left turn signals with a red arrow indicator.
"We're just now beginning to install them," Calder said. "The Fort Wayne district started installing some just last year."
Calder said bulbs in Clay County will also be replaced this year and work would continue through 2017.
"It's probably going to (take) six years," she said. "It's just happening through the normal process."
Calder said LED lights in stoplights are replaced on a six-year cycle and the approximate number of bulbs being replaced this year in the Crawfordsville District is 30.
The initiative, according to Calder, became necessary after the 2009 edition of the Federal Highway Administration's Manual on Uniform Traffic Control Devices (MUTCD) deleted the option of using a circular red indication in a protected-only left turn signal. The purpose of the change was to "enhance uniformity and eliminate left turn signal signs."