CABLERIDER
How the ropeways work — cable cars, gondolas, and funiculars, explained.
From estimating how much a cable sags between towers to sizing ridership throughput, timing a ride, converting an incline, balancing a funicular’s two cars, and sizing a rope for a span, CableRider pairs free hands-on engineering calculators with clear, worked explanations and a richly illustrated museum. Understand how the ropeway works, not just the ride.
Ropeway Engineering Calculators
Free tools for cable cars, gondolas, and funiculars — cable sag calculator, capacity & throughput calculator, ascent time calculator, grade & gradient calculator, funicular haul calculator, and a rope length calculator.
Cable Span Sag Calculator
Estimate midspan sag, support tension, and cable length from a span, weight per meter, and horizontal tension.
Cable Car Capacity & Throughput Calculator
Work out headway, cars per hour, and riders per hour from cabin capacity, spacing, and line speed.
Ascent Time Calculator
Turn a line distance and line speed into a ride time, with an optional station dwell allowance.
Grade & Gradient Calculator
Convert a rise-and-run incline into percent grade, angle, slope length, and the '1 in X' ratio.
Funicular Counterweight & Haul Ratio Calculator
See how a funicular's two cars balance each other, and the net haul force the drive must supply.
Rope Length for a Span Calculator
Estimate the extra cable length a given amount of midspan sag actually costs.
Ropeway Museum
Wander an immersive, richly illustrated collection — aerial tramways and gondolas, funiculars and cliff railways, the famous city cable cars every visitor recognizes, and the mountain lifts and cog/rack railways that climb the world’s steepest grades, each in its own gallery. Every entry, image, and fact is drawn from Wikipedia and Wikimedia Commons.
Tour the museum →From the Journal
Clear, worked guides on how cable cars, gondolas, and funiculars actually work — cable tension and sag, counterweighted haulage, detachable grips, and the history behind some of the world’s most famous lines.
How Cable Tension and Sag Work Together
Every ropeway cable sags a little under its own weight. This guide explains the parabolic sag model, why more tension pulls a cable straighter, and what that means for the towers.
Monocable, Bicable, and Tricable: The Differences Between Gondola Systems
Not every gondola works the same way. This guide explains monocable, bicable, and tricable (3S) ropeways, and why engineers trade cable count for speed, wind resistance, and cost.
Why Funiculars Barely Need a Motor
Two cars, one rope, one pulley — and a drive motor that barely has to work. This article explains the counterweight physics that makes funiculars one of the most energy-efficient transport designs ever built.
Fixed-Grip vs Detachable: How Cable Car Grips Actually Work
The grip is the small mechanical part that decides whether a whole lift line runs at a slow, steady crawl or a brisk clip with slow-loading stations. Here's how the two main types differ.
A Short History of the Aerial Tramway
From industrial ore-hauling ropeways to the first passenger aerial tramway over a Swiss glacier, this is a brief history of how cable cars in the sky became mainstream transport.
How Many People Can a Gondola Line Actually Move? Understanding Ropeway Throughput
Riders per hour isn't just about how big the cabins are — it's a function of spacing, speed, and load factor working together. This article breaks down the arithmetic planners actually use.
Keep Learning
Plain-language explainers on the building blocks of ropeway transport — cables and towers, drive systems and grips, the pioneers and history behind the world’s lines, and the terminology that makes an engineering spec sheet readable.
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