In New Zealand, one-lane bridges
are a common enough thing that tourists are warned about them. The rules are simple. Approach with care, go slowly, and if there's someone
coming the other way then sometimes there are signs
that'll tell you who has priority. There is an exception to that rule
in just a couple of places, though, which is that, regardless
of what those signs say... [train horn] always let the train go first. - Dunedin Railways started
operating in the 1990s and we run a tourist train business. We cart about 80-90,000
passengers a year. The route is 154km return from Dunedin and follows a river gorge
up through the Taieri River up onto the Strath Taieri plain. The scenery is spectacular,
how they built it. They started in 1879, it was
completed in 1891, all by hand. It is a challenging route. It's really up and down. - Just to be clear, this isn't a tram,
or a trolley bus, or light rail, this is an actual train
running on the street here, because that was a better option than trying to build a second bridge
on a very quiet road. Technically, I guess this is just
a very strangely shaped level crossing? And there are a few other
bridges like this around the world, but almost all of them have lights
and sirens and barriers to keep cars separated
when there's a rain approaching. Here, you just take care
and listen out for the train horn. - When the road bridge
further up the river failed, they made the rail bridge a road bridge. There used to be a lot more in the country. It was a cheap option, why build two bridges
when you can build one? They were mainly built
in less populated areas because trains and cars don't
usually combine very well(!) so you wouldn't build them in the cities. But the cars just have
to follow the road rules. There's stop signs at
either end of the bridge and you don't do line speed
going up onto a road-rail bridge, you're doing 10kph, blowing the whistle
and all that sort of thing. Hindon Road-Rail Bridge
is really there only to give access to two sheep stations, so there's not that much traffic on it.
Rarely you come across a car anyway. The train is going at a speed
that it can stop pretty easily, and usually the cars have to back up. We've never had a problem
on a road-rail bridge. Level crossings are worse.
The Whittier tunnel in Alaska does a similar thing, but for much longer (2.5mi / 4.1km long). You used to be able to walk though it once a year, but I haven't heard about it recently.
https://en.wikipedia.org/wiki/Portage_Glacier_Highway#Anton_Anderson_Memorial_Tunnel
http://www.dot.state.ak.us/creg/whittiertunnel/index.shtml
Bitch, I'm comin' through out the way
r/newzealand
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That is cool!
Reminds me of BechynΔ Rainbow bridge, except the road is two-lane so only one side has to stop but it's still interesting nonetheless.
The daily dosis Tom Scott is always good
This is surprisingly informative