Taxiway centerline lighting is installed parallel to which feature?

Taxiway centerline lighting is specifically designed to be installed parallel to the taxiway centerline. This lighting serves a crucial purpose by guiding pilots along the taxiway, ensuring they remain on the correct path during taxi operations, especially during low visibility conditions. The alignment of the lights with the centerline enhances situational awareness for pilots, reducing the risk of taxiway incursions and improving overall safety on the airport grounds.

The other features, while important in the context of airport layout and operations, do not align with the lighting in question. Runway edges denote the boundaries of runways, holding positions mark where aircraft are to stop, and takeoff lanes pertain to areas during departure. None of these features are directly related to the function or placement of taxiway centerline lighting. Thus, the parallel installation with the taxiway centerline is integral for effective navigation on the ground at an airport.