Length, gradient, curve count, labyrinth: how a bob track is built, what separates Altenberg from Igls and St. Moritz, and which tracks Germany has.
There is no standard bob track. Competition courses run between roughly 700 and 1,800 metres, drop 40 to 150 vertical metres and have 6 to 20 curves; Olympic tracks usually sit in the 1,200 to 1,400 metre range [1]. Saying "the track" says essentially nothing.
Two elements are mandatory and appear in every track architecture: at least one straight and a labyrinth — three curves in quick succession [1]. The labyrinth is where rhythm separates from reaction.
Three examples make the range tangible: Igls measures 1,218 metres with a 124-metre drop and 14 curves, Sigulda 1,200 metres, St. Moritz 1,722 metres [1]. Between the shortest and the longest lie a good 500 metres — roughly the difference between an 800-metre race and a kilometre, only at over 150 kph.
And if you are a German athlete the situation is comfortable: four of the world's roughly 16 internationally used ice tracks are in Germany — Winterberg, Altenberg, Oberhof and Königssee [2].
Length, vertical drop, curve count, mandatory elements. The range is considerable: 700 to 1,800 metres, 40 to 150 vertical metres, 6 to 20 curves [1]. Almost everything else follows from those four numbers — run time, speed build-up and how much time remains between two curves.
Every track has at least one straight and a labyrinth of three curves in quick succession [1]. Little happens on the straight; everything happens in the labyrinth. Anyone learning a new track starts at the labyrinth and works backwards.
Igls combines 1,218 metres with a 124-metre drop and 14 curves [1] — a lot of height over little length means a lot of speed early. St. Moritz is considerably longer at 1,722 metres [1], so the ride lasts longer and demands concentration for longer. Two tracks, two entirely different demand profiles.
Ice hardness depends directly on temperature, and the highest speeds are reached at ice temperatures between roughly minus 10 and minus 20 degrees [3]. The same track at minus 4 degrees is a different place than at minus 15. Without that column in your log you compare times that are not comparable.
Models of track and trajectory optimisation treat the course profile as a whole: better trajectories mean fewer corrections on the steering axis, and that is where better performance comes from [4]. Practically, for everyone in the sled: one curve's exit is the next curve's entry condition — you feel that as a push athlete too.
You do not have to be a pilot to experience a track. Altenberg runs guest trips from the junior start over roughly 1,000 metres through 11 banked curves at over 100 kph, Winterberg up to about 130 kph [5]. For push athletes that is a cheap way to have a track's rhythm in the body before it counts.
An ice channel is high-risk terrain, not an accessible sports facility. Entering, riding and every form of training run exclusively through the operator, the federation and qualified coaches — including out of season and including when there is no ice.
This guide explains track anatomy, it is explicitly not a driving manual. How a line is driven, how a given curve is approached and what happens at the limit is learned exclusively in the channel, under supervision, over years. Any attempt to imitate driving technique from a text or video is life-threatening.
If you want to experience a track as a guest, use the route designed for it: booked guest runs with a professional pilot and an experienced brakeman [5].
Build a one-page data sheet for every track before you travel: length, vertical drop, curve count, position of the straight, position of the labyrinth [1] — plus the ice temperature on the day [3]. It sounds bureaucratic but it is the difference between "the track was difficult" and "curves 7 to 9 in the labyrinth cost me time". After three tracks you will recognise your own pattern: some athletes cope better with long fast tracks, others with short twisty ones. Without data sheets you never notice.
Olympic tracks usually sit at roughly 1,200 to 1,400 metres. Across all tracks, competition lengths range from about 700 to 1,800 metres, with 40 to 150 metres of vertical drop and 6 to 20 curves [1]. Concrete examples: Igls 1,218 metres with 14 curves, Sigulda 1,200 metres, St. Moritz 1,722 metres [1].
In Winterberg, Altenberg, Oberhof and at Königssee — which means four of the world's roughly 16 internationally used ice tracks are in Germany [2]. Königssee was badly damaged by a storm, with the start area and the first 300 metres or so destroyed; the rebuild is running at around 50 million euros [2].
Three curves in quick succession. Together with at least one straight, the labyrinth is one of the mandatory elements of track architecture [1]. It is the most demanding section because there is barely time to correct between curves — and fewer corrections mean better performance [4].
Because of ice temperature. Ice hardness depends directly on it, and the highest speeds are reached between roughly minus 10 and minus 20 degrees [3]. Warm ice is softer and slows you down. That is why ice temperature belongs in every run log — otherwise you mistake weather for a change in form.
Yes, through booked guest runs. At Altenberg you go from the junior start over roughly 1,000 metres through 11 banked curves at over 100 kph; at Winterberg the bob taxi reaches up to about 130 kph [5]. Entering or riding an ice channel independently is out of the question — it is an operational site.
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