Home » NJ Transit study of ‘Princeton Dinky’ future narrows to two options

NJ Transit study of ‘Princeton Dinky’ future narrows to two options

By Trains Staff | March 4, 2022

| Last updated on March 22, 2024


Light rail/bus combination and as-is alternatives remain from original group of four choices

Two-car EMU trainset rounds curve
NJ Transit’s Princeton Branch train, popularly known as the Princeton Dinky, arrives at the Princeton University station in August 2019. NJ Transit has narrowed the choices in its study of possible alternatives to the current operation, the nation’s shortest scheduled commuter line. David Lassen

PRINCETON, N.J. — The nation’s shortest scheduled commuter rail line now has a 50-50 chance of remaining as it is.

The Daily Princetonian reports that a study of possible options to replace “Princeton Dinky,” the 2.7-mile electrified NJ Transit line connecting the Princeton University campus to the Northeast Corridor, has reduced four potential options to two — one of which is keeping the line as it is.

The other option still under consideration is building a light-rail line that would be imbedded in a bus rapid transit route; the two transit modes would alternate, with light rail ending at the existing university station while buses would continue into downtown Princeton. The cost of that project is estimated at $100 million; the as-is option is estimated to cost $15 million for maintenance of existing equipment.

Eliminated from consideration were an all-bus option and one in which the light rail and bus routes would have been side by side.

The study began last year [see “Digest: NJ Transit study could lead to the end of ‘Princeton Dinky,’” Trains News Wire, April 12, 2021].  The Dinky, officially known as the NJ Transit Princeton Branch, currently operates with a two-car Arrow III trainset.

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