29
Sep

2011

Urban Gondola For Bucharest: Most Ambitious Cable Transit Plan Ever?

Post by Steven Dale

Rendering of a potential urban gondola station in Bucharest, Romania.

Reports surfaced yesterday about plans for an urban gondola transit system in Bucharest, Romania. If the reports are true, the system will be one of the most ambitious and robust Cable Propelled Transit systems the world has ever seen.

The system would be 10 km long, have 6 total stations (4 intermediary) and three corners. Regarding system capacity, the linked-to report states that “a single cable car will (carry) 1,500 people per hour.” This, of course, is impossible so we can only assume a translation error and the actual capacity of the system will be 1,500 pphpd.

Technical drawings of the Bucharest Gondola. For higher resolution, download the original by clicking the image.

Three things to note here:

Firstly, note how the system closely follows a series of rivers and lakes. This is a great example of how cable is able to exploit the natural features of an urban area that technologies such as Light Rail and BRT cannot. This is a point I made previously in an article I wrote for Urban Omnibus. It isn’t a condemnation of those two other technologies, but it is to point out one of cable’s great advantages.

Secondly, while it is never explicitly stated, all information suggests this system will utilize MDG technology. At a speed of only 5 m/s (18 km/hr), one can calculate that an end-to-end trip would take roughly 38 minutes (including intermediary dwell times).

Admittedly, that’s a long time to travel only 10 km.

But it’s worth considering how long it might take someone to travel an equivalent route using existing road and transport infrastructure. As this system is “leapfrogging” the road network by using the river contour, there could actually be significant time savings here. If anyone has any thoughts on this issue, they would be more than welcome.

Lastly, the system is a relative bargain at €20m (!)

Now to be frank, that number seems absurdly low. There’s clearly something missing here – station architecture, possibly or something else. But at a per km cost of just €2m, it does remind one the Vinpearl Land gondola in Vietnam. So despite the fact that I’m incredibly suspicious of that price tag, I’m willing to play along until I find reasons to do otherwise.

Nevertheless, this is a system that will be well worth following.

(Final note: Not that I really want to wade back into our debate on the costs of the London Thames Cable Car (here or here), but isn’t some cost comparison in order here? Can London really be that much more expensive a place to work that it requires 350% more money than Bucharest to build a line that’s one tenth the size and length? Just saying.)

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Comments

  1. I didn't realize a gondola line could turn that much without special turning stations. What's the maximum angle before things get expensive?
  2. Max angle on-tower is no more than 1-2 degrees; virtually nothing. All these turns are likely being executed with angle stations.
  3. MGD were built even with 25/30° turns, using special towers. The technical possibility dates from sixties ... its no more used, since is expensive and need lot of manutention, that is a big cost in mountain areas. Look here http://images.imagehotel.net/6v5xt77v4r.jpg
  4. Matt the Engineer
    Wow, that's quite a bit of steel. I'm not sure I'd want that in the middle of a city. (translation: manutention = maintenance)
  5. Thanks for the correction... Gondola technology needs a step forward; its already competitive and interesting - this Bucharest project base on strong points like the possibility of large spans over water - but a simple improvement like a "variable" grip instead of on/off ones (already more than 40 yrs old) could change a lot in terms of allowed speeds and station design.
  6. Giorgio, Do you have any more examples of those towers? The image you show isn't really a turn so much as it's an arch. It would be great if we could develop a part on the site that has examples of old-timey on-tower turns.
  7. Yeah, something like that would have to be completely re-engineered/re-designed to make it palatable.
  8. What do you mean by variable grip? Do you mean like on the San Francisco Cable Cars which allow the vehicles to move at different speeds?
  9. Something similar ; all the current grips works on an on-off principle , and this impose to make the decelerations and accelerations INSIDE the stations with open grip; if it would be possible to make it works like a car or bike disk brake it will be possible to have the speed increase and decrease on line, so the stations could be very small and simple and speed could increase a lot, easily passing the 12 m/s . Unfortunately , its a simple problem with big technological obstacles, and a small-step , safety obssessed industry like ropeways one, won't tackle it if not indispenzabel.