Will Detachable Lifts Get Faster?

There’s a lively discussion going on over at Alpinforum about the future of detachable lifts, which haven’t gotten much faster despite huge advances in technology over the last thirty years.  The first modern detachable chairlift, Quicksilver at Breckenridge, went 787 feet a minute when it debuted in 1981.  Since then, manufacturers have installed hundreds of gondolas and chairlifts capable of going more than 1,000 fpm.

The first lift to go 1,100 fpm was the Whistler Village Gondola in 1988 and the first capable of 1,200 fpm was Stowe’s gondola in 1991.  Both were built by Poma, the early adopter of faster line speeds.  The only detachable installed in North America since 1991 capable of traveling any more than 1,200 fpm is the Peak 2 Peak Gondola, debuting in 2012. As a tri-cable gondola, P2P has an impressive capability of 1,476 fpm (7.5 m/s.) Doppelmayr claims similar systems can go up to 1,670 fpm (8.5 m/s.)  So far, the fastest 3S ever built goes 8 m/s and one that can go 8.5 will debut in Vietnam next year.  Meanwhile, 1,200 fpm (6 m/s) remains the highest speed for a single cable detachable, a stat that hasn’t changed since 1991.

avg speed over time
From 1984 to 2015, the average speed of a detachable lift in the U.S. increased by only 900 feet a minute.

The truth is the vast majority of detachable lifts built these days have the standard design speed of 1,000 fpm (5.08 m/s) and operate even slower much of the time.  In my experience, many ski areas run so-called high speed lifts at 800 or 900 feet a minute on all but the busiest of days.  As users on Alpinforum note, ski resort operators care more about reducing stops, wear and tear than shaving thirty seconds off a ride time that the average guest won’t even notice.

These days, it’s the more lucrative urban markets where line speed gains importance. Taking the La Paz example, a transit rider on the Blue, Green and Yellow lines is traveling nearly seven miles over 40+ minutes.  When decision-makers consider a gondola system, they are comparing it to much faster buses, subways and cars over longer distances than those found in ski resorts.

La_Paz_Phase_II_01.jpg
If I’m going from the end of the Blue Line to the end of the Yellow Line over 6.5 miles with seven stations in between, I want the fastest possible line speed.

Doppelmayr says its new D-Line is capable of 7 m/s or 1,378 feet/min which is 15% faster than the fastest monocable detachable lifts today.  As the below test video from Fatzer shows, bullwheels and sheaves can spin at up to 18 m/s or 3,500+ feet/min, and boy does that look (and sound) fast.  I think more realistic speeds we might see in the next 10-20 years are 10 m/s for monocable lifts and 12.5 m/s for 3S systems.  Even if these developments are aimed at urban transportation, the skier in me hopes someone, somewhere still wants to build faster lifts in the mountains.

 

 

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