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Funiculars, Aerial Cable Cars, 
and Cogwheel Railroads

Swiss funicular

ABOVE: A funicular car of the Marzilibahn, which provides transportation between the city center of Bern, Switzerland and the River Aare.

Visitors to the Alps are often confused by the terms used to describe the rail and aerial transportation systems that haul tourists and skiers from valleys to mountaintops. In this article, I'll describe the three basic modes: funiculars, aerial cable cars, and cogwheel railroads.


A funicular cable car is a hybrid of a railroad and an elevator or lift. Two cars of equal size and weight are attached by a cable that loops over pulleys and a drivewheel at the upper station. As the drivewheel moves the cable, one car goes up the track while the other goes down. The two cars pass each other (typically on a short section of parallel tracks) at the midpoint of their journey.

Funiculars are used on slopes that are too steep for conventional railroads. Normally they travel in straight lines, like an elevator or lift, covering distances that range from about 100 to 1000 meters.

Aerial cable cars

Swiss aerial cablecarINSET PHOTO: An aerial cablecar transports skiers to the Gemstock in Andermatt, Switzerland.

An aerial cable car consists of a reversible moving cable with a gondola suspended underneath at each end. The gondolas convey anywhere from a few dozen to a hundred or more passengers per trip.

Like the cars of a funicular, the two gondolas are counterbalanced. When one gondola is at the upper station, the other is at the lower station, and the gondolas pass each other on their ascent and descent.

(Note: Gondola lifts have an outward resemblance to the aerial cable car but are actually more like the chair lifts and T-bars used on ski slopes. Their gondolas are much smaller than the gondolas of an aerial cable car, and the small two- to four-passenger capsules are suspended on a cable that runs in a continuous loop.) 

Aerial cable cars are used in locations where a funicular isn't practical: e.g., over undulating terrain or to carry passengers from the bottom to the top of a cliff.

Swiss cogwheel railroad

ABOVE: A train of the Gornergrat cogwheel railway in Zermatt, Switzerland. The toothed center rail meshes with horizontal gears on the electric locomotive.

Cogwheel railroads

A cogwheel, rack-and-pinon, or rack railway is similar to a conventional railroad, except that the locomotives or self-propelled railcars are equipped with horizontal gears. These gears mesh with a toothed rail between the ordinary rails, providing traction on slopes that are too steep for propulsion via conventional adhesion (wheel against rail).

Often, mountain railways use cogwheel or rack-and-pinion propulsion only on sections that require the extra traction. If you're traveling on such a railroad, you'll sense the change to cogwheel propulsion when the train stops and the engineer or engine driver engages the cogwheel.

For an illustrated introduction to one of Switzerland's most famous cogwheel railroads, see our article about Pilatus Kulm.

About the author:

Durant Imboden photo.Durant Imboden is a professional travel writer, book author, and editor who focuses on European cities and transportation.

After 4-1/2 years of covering European travel topics for, Durant and Cheryl Imboden co-founded Europe for Visitors in 2001. The site has earned "Best of the Web" honors from Forbes and The Washington Post.

For more information, see About Europe for Visitors, press clippings, and reader testimonials.