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Old August 26th, 2008, 10:21 PM   #1161
Verso
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You're right, it's more like 26 km (or 26.7 km to be precise) missing.
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Old August 27th, 2008, 09:01 PM   #1162
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Quote:
Originally Posted by Tauernautobahn View Post
Any news from the Sentvid tunnel?
News:
Minister of traffic approved opening of this tunnel, it will be opened in both directions this night or at latest until tomorrow morning. Speed limit will be set at 80 km/h and not 100 km/h as previously designed.
Hopefully additional closures are not needed any more.
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Old August 28th, 2008, 12:02 AM   #1163
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Quote:
Originally Posted by keber View Post
News:
Minister of traffic approved opening of this tunnel, it will be opened in both directions this night or at latest until tomorrow morning. Speed limit will be set at 80 km/h and not 100 km/h as previously designed.
Hopefully additional closures are not needed any more.

So maybe I'll see it in September
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Old August 28th, 2008, 08:48 AM   #1164
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Finally, opened again:
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Old August 28th, 2008, 11:43 AM   #1165
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Sweet!
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Old August 28th, 2008, 05:12 PM   #1166
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Interesting video with the northern and eastern Ljubljana bypasses:
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Originally Posted by Dejko View Post
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Old September 1st, 2008, 06:27 PM   #1167
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Video of Šentvid tunnel, northern Ljubljana bypass and driving to the city-centre:
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Originally Posted by Dejko View Post
Or click for high quality.
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Old September 1st, 2008, 06:36 PM   #1168
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Nice video. Did you make it?
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Old September 1st, 2008, 06:39 PM   #1169
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Comparing Ljubljana to Orlando is funny though Technically he's right.
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Old September 1st, 2008, 06:54 PM   #1170
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Quote:
Originally Posted by ChrisZwolle View Post
Nice video. Did you make it?
No, I quoted it. I'd have to buy a camera first, or make 20-second movies.
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Old September 1st, 2008, 08:34 PM   #1171
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It's a very nice video (and good music ) Lots of exits on the H-3
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Old September 1st, 2008, 08:57 PM   #1172
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Yes, 8 exits in 10 km (7 in first 6 km from west) + interchanges on beginning and the end of H3.

Together with the largest traffic density in Slovenia (between 60.000 and 70.000 AADT for 4-laned expressway) those exits cause many delays in peak hours (transit traffic is mostly diverted on A1 and A2). Still, expansion is not foreseen in near future.
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Old September 1st, 2008, 09:05 PM   #1173
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In the video it said that it would soon be expanded to 2×3
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Old September 1st, 2008, 09:05 PM   #1174
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70.000 is indeed a value where you have to think about a widening. Technically, it could handle more traffic. (the A28 in my city handles 95.000 vehicles a day on 2x2). Maybe they should expand the exit lanes, so it can buffer some more traffic.
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Old September 1st, 2008, 09:24 PM   #1175
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double

Last edited by keber; September 1st, 2008 at 11:11 PM.
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Old September 1st, 2008, 09:29 PM   #1176
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Quote:
Originally Posted by ChrisZwolle View Post
70.000 is indeed a value where you have to think about a widening. Technically, it could handle more traffic. (the A28 in my city handles 95.000 vehicles a day on 2x2). Maybe they should expand the exit lanes, so it can buffer some more traffic.
Mostly impossible, b/c the most frequent exits are also entrances at the same time.

Quote:
Originally Posted by Timon91 View Post
In the video it said that it would soon be expanded to 2×3
It isn't correct though. Only the western bypass (A2) is scheduled for 2×3 in the near future (with an additional rest area). IMO the whole ringroad should be widened in 5-10 years.

Last edited by Verso; September 1st, 2008 at 09:37 PM.
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Old September 1st, 2008, 09:30 PM   #1177
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It can easily handle more traffic, but only off traffic peaks. In traffic peaks many exits are clogged, because they lead to ordinary city roads with traffic lights. Actually, H3 was already 6-laned in early 80-ies, but with no acceleration/deceleration lanes, which were pretty soon introduced with closure of third lane and changing it into ordinary hard shoulder. From early eighties:


About expansion; video is wrong, there is absolutely no study made about widening H3. Widening is currently planned only for western part of Ljubljana ring on A2 between both interchanges (with H3 and A1), about 2,5 km long, to be finished in 2013.

@Chris: complete redesign of main exit/city road intersections (4 of them) would greatly improve traffic conditions. Widening of H3 involves constructing new overpasses and moving exit ramps towards residential and business buildings, which are very close to H3.



Not impossible, but sure pretty expensive. That's why expansion is still not in main motorway plans. Also main city roads will be expanded in next 10 years, which will improve situation on H3.
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Old September 1st, 2008, 09:39 PM   #1178
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Quote:
Originally Posted by Verso View Post
Mostly impossible, b/c the most frequent exits are also entrances at the same time.
You can make 2 exit lanes or maybe even three. So, not longer exit lanes, but wider ones, so you can buffer more traffic. Or give the exiting traffic priority at the traffic lights with longer green phases.
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Old September 1st, 2008, 10:00 PM   #1179
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Quote:
Originally Posted by ChrisZwolle View Post
You can make 2 exit lanes or maybe even three.
The H3 already has de facto 2 exit lanes by (most important) exits (one wide lane).
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Old September 1st, 2008, 11:11 PM   #1180
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Quote:
Originally Posted by ChrisZwolle View Post
You can make 2 exit lanes or maybe even three. So, not longer exit lanes, but wider ones, so you can buffer more traffic. Or give the exiting traffic priority at the traffic lights with longer green phases.
(damn SSC ...)

Main Ljubljana city roads were constructed between 1960 and 1980 and were appropriate for the traffic of that time. However more or less nothing was done later (except some small modifications), traffic however increased manyfold since. Traffic lights were optimised as much as possible (some thing could still be improved, but not substantially), main problem are 4-laned main roads, which are too narrow for today's traffic. Second problem are intersections with exits to motorway ring. A lot was done, for example, with opening of A2 between A2/H3 interchange and Šentvid exit through Šentvid tunnel, which virtually emptied the most clogged intersection over H3, which was designed for transit traffic and therefore had big capacity (but not big enough).

Still: width of main city roads is the main bottleneck, which holds back traffic especially in the morning rush hour. Increasing width of exit ramps wouldn't help much, often tailbacks on H3 are two-laned and 2 or 3 km long (I need to take some pictures of that sometime). Traffic lights are already optimised on that intersections and cannot do much, if queue is continuing until city center. And situation is worsening rapidly, transit time from center to H3 in peak hours has almost doubled in just two years. H3 alone doesn't have noticeable jams in the afternoon (except in case of accidents), but mornings are critical.

However city officials are not in big hurry to make something about it. Widening of first city road should begin in few years, but won't be finished at least until 2015 (even today is already too late) - for a mere 2,7 km.
And even worse: first plans of road widening are quite unambiguous, looks like, that traffic experts weren't invited to collaborate.

Last edited by keber; September 1st, 2008 at 11:49 PM.
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