|
Abstract:
|
Light Emitting Diode (LED ) is used in traffic signals and highway illumination in the Texas Department of Transportation , Houston District (TxDOT ) . The thesis focuses on the cost of maintenance of the LED for signals on the highway system in the Houston District . This LED cost includes human and capital resources which are compared against the cost associated with the incandescent bulb used in traffic signals at a similar location in Houston . The analysis leads to actionable decisions to see if total migration of the LED is advisable or not , amidst budgetary constraints and the benefits thereof . |