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Old April 29th, 2010, 04:39 AM   #841
Uppsala
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Quote:
Originally Posted by shpirtkosova View Post
Speed limits are usually calculated by lane width, condition and the size of bends, it cannot be possible as motorways themselves are not designed or built up to a "european standard".
I think it's maybe possible to to have a sort of European standard to calculate them. If some of the motorways in Sweden with the speed limit 110 km/h were in Italy, they should be faster. So if the speed limits were more standardized they should have more of same sort of speed limits.
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Old April 29th, 2010, 08:47 AM   #842
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Originally Posted by I-275westcoastfl View Post
For the US I'd propose..

Rural Interstates 75mph for somewhat heavily traveled ones and up to 90-100mph on fairly empty ones.(Sorry I can't support no speed limits with how stupid people can be.)
Rural Highways 2x1: 55mph to 65mph
Rural Highways 2x2: 60-65mph
Urban Highways: 65-75mph
Expressways: 60-75mph
Urban Roads
2x1: 25-40mph
2z2: 35-50mph
2x3: 45-50mph
Suburban Roads
2x1: 30-40mph
2z2: 45-55mph
2x3: 50-60mph
2x4: 55-65mph
The issue with American drivers and their highways is that they don't have an ordered driving style. That's why the speed limit is so low. I'm trying to say that in Europe it's normal that you drive on the right side at all times unless you wanna pass another car. Here in the USA people drive on the left side all the time and they also drive on the right side. What you get is that you have to slalom between cars and switch lanes all the time. There is no space or time to speed up. It's annoying as fck and I can completely understand that it's not a pleasure for most Europeans to rent a car in the USA and drive on their highways. My family is coming over tomorrow night, let's see how they like it..
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Old April 29th, 2010, 01:16 PM   #843
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Originally Posted by Uppsala View Post
I think speed limits is good at the motorways. I think they should have that in Germany too. Maybe we should have a European standard of speed limits. Thats means the speed limits could be higher in Sweden at some motorways in the countryside and in the forests. And a little bit slower in Germany.
If there will be an European standard, then Germany will for sure leave the EU .
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Old April 30th, 2010, 12:57 AM   #844
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Originally Posted by Chrissib View Post
If there will be an European standard, then Germany will for sure leave the EU .


There are several 120, 130 and even some 100km/h zones on the three lane A3 for example between Cologne and Franfurt. 100 km/h is too slow. There should be more Free-Speed/unlimted zones.

I repeat, but that's just my opnion.

But i agree that trucks doing 100 km/h and cars doing 200 km/h can be a risk. Maybe one reason why the authorietes decided to build up speed limits "everywhere"

http://www.autobahnatlas-online.de/A3.htm
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Old April 30th, 2010, 05:13 PM   #845
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Whre there are dangerous road sections a speed limit is useful, but general speed limit is wrong.
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Old July 14th, 2010, 09:33 AM   #846
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Freeways in Iran:
Max:120 km/h
Min:60-70 km/h
But the freeways are designed for more than 120
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Old July 14th, 2010, 08:45 PM   #847
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Originally Posted by Bartolo View Post
I think that a reasonable speed limit would be 130-140kmh. It would be a big improvement from the 100kmh speed limit in Ontario. The flow though at many times is anywhere from 120 to 130. The police here are very lenient for the most part. So long you are doing within 20 kmh or not travelling faster than flow of the limit you are good.
I sort of agree. I like speed limits that actually reflect travel speed - at least when that travel speed can be considered safe. 120 kph is sensible on rural motorways, I think, and that seems to be the conclusion of the safety-minded people developing "Nollvisjonen" (Zero Fatalities Vision) in Sweden as well. Even though going 180+ might feel safe on high-quality motorways, it's certainly not a safe travel speed...
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Old July 14th, 2010, 09:02 PM   #848
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Worst situation, IMO, is that in which a unreasonably low speed limit is in place, but most drivers ignore it.

I've driven dozens of thousands of km outside my country. I do my job searching for national regulations and particular road signs in the country before seating into a car there. Nonetheless, I don't know local specifics like "in Ontario policemen are lenient, but in Quebec they are strict", and because a 20 km/h speeding can lead to anything from a verbal "slow down" waving to a multi-thousand euro fine, I have a principle: when abroad, ALWAYS obey the posted/general speed limit no matter what.

So, even if people complain about US drivers, I must say that the US, particularly the Western states, is where I've got less honking and tailgating when I obey 45 MPH signs or so.

On the other side, Austria and Portugal are among the worst places I've been. I ALWAYS stick to posted limits when abroad, and I disregard the "flow" as I never know whether a speed trap is just around the corner. So in countries like Portugal and Austria sometimes everyone stick to 60 km/h signs, sometimes they ignore me and I was even passed on the shoulder (e.g., me driving on the right lane, someone cutting me by the shoulder) in Portugal more than once.

So unreasonable speed limits either means nobody respects them, or are set up as cash cows for law enforcement. Because foreign drivers are vulnerable (can't contest fines, if car is a rental there will be hefty admin fees etc.), I'd advise them to always stick to the speed limit.
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Old July 14th, 2010, 09:18 PM   #849
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Speed limits should be calculated using the 85th percentile of free-flowing traffic method, rounding them to the nearest multiple of 5.

In real life, however, speed limits are calculated taking into account extraneous and non-engineering factors such as neighbors' political pressures, politicians' erroneous notions about driving behavior (for example, that drivers always drive 5 miles above the posted signs even though that's not so) and the need to raise revenue through speed traps (if you use the 85th percentile method, only 15 percent of drivers will disobey it, but if if you set the limit too low, you'll create yourself a captive market of 85 percent of drivers for your speeding tickets and you'll make out like a bandit).
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Old July 14th, 2010, 09:21 PM   #850
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Originally Posted by Suburbanist View Post
Worst situation, IMO, is that in which a unreasonably low speed limit is in place, but most drivers ignore it.

I've driven dozens of thousands of km outside my country. I do my job searching for national regulations and particular road signs in the country before seating into a car there. Nonetheless, I don't know local specifics like "in Ontario policemen are lenient, but in Quebec they are strict", and because a 20 km/h speeding can lead to anything from a verbal "slow down" waving to a multi-thousand euro fine, I have a principle: when abroad, ALWAYS obey the posted/general speed limit no matter what.

So, even if people complain about US drivers, I must say that the US, particularly the Western states, is where I've got less honking and tailgating when I obey 45 MPH signs or so.

On the other side, Austria and Portugal are among the worst places I've been. I ALWAYS stick to posted limits when abroad, and I disregard the "flow" as I never know whether a speed trap is just around the corner. So in countries like Portugal and Austria sometimes everyone stick to 60 km/h signs, sometimes they ignore me and I was even passed on the shoulder (e.g., me driving on the right lane, someone cutting me by the shoulder) in Portugal more than once.

So unreasonable speed limits either means nobody respects them, or are set up as cash cows for law enforcement. Because foreign drivers are vulnerable (can't contest fines, if car is a rental there will be hefty admin fees etc.), I'd advise them to always stick to the speed limit.
To some extent, I agree. OK, I don't obey any limit anywhere, and - particularly on motorways - I go with the flow. On motorways in most of Europe, that speed translates to 120-140 kph, which is my preferred travel speed anyway... In addition, I have also done a considerable amount of driving around Europe, and I generally look into police attitude towards moderate speeding in various countries. My experience is that as long as I employ my Norwegian methods - observing town and city speed limits, maxing out at 10-20 kph above on rural roads or motorways - I'm safe.
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Old July 14th, 2010, 09:37 PM   #851
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Originally Posted by El Tiburon View Post
Speed limits should be calculated using the 85th percentile of free-flowing traffic method, rounding them to the nearest multiple of 5.
In theory, the 85th percentile is a good idea. The problem is, however, that it is a theoretical paper-figure that on any given stretch of actual road is subject to change - for instance if the speed limit is lowered or increased. Even seemingly unrelated things like the global financial situation may affect driving speeds, and on some roads - for instance close to schools - there may be sensible to force a reduction in driving speed. That said, the 85th percentile very often makes more sense than other criteria.
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Old July 15th, 2010, 12:49 AM   #852
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Originally Posted by ElviS77 View Post
To some extent, I agree. OK, I don't obey any limit anywhere, and - particularly on motorways - I go with the flow. On motorways in most of Europe, that speed translates to 120-140 kph, which is my preferred travel speed anyway... In addition, I have also done a considerable amount of driving around Europe, and I generally look into police attitude towards moderate speeding in various countries. My experience is that as long as I employ my Norwegian methods - observing town and city speed limits, maxing out at 10-20 kph above on rural roads or motorways - I'm safe.
This wouldn't work in Estonia. Police patrols are sure to pull you over if you're doing more than 10km/h over the limit(even though you might get away with a warning). Furthermore, speed cameras start taking photos at already +7km/h over the limit(and this includes the measuring error).
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Old July 15th, 2010, 03:40 PM   #853
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This wouldn't work in Estonia. Police patrols are sure to pull you over if you're doing more than 10km/h over the limit(even though you might get away with a warning). Furthermore, speed cameras start taking photos at already +7km/h over the limit(and this includes the measuring error).
But 20 kph above on the speedo translates into 10 in real life, right? Also, if I realise there are speed cameras (I assume they are signposted in Estonia as well..?), I reduce my speed adequatly.

Warnings are, btw, very unlikely to happen if you are caught speeding in Norway. Even 10-15 above will set you back 300 euros...
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Old July 15th, 2010, 03:48 PM   #854
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For the US I'd propose..

Rural Interstates 60-65mph for somewhat heavily traveled ones and up to 70mph on fairly empty ones. (You can actually drive however fast you want, at the risk of getting pulled over or eating your windshield)
Rural Highways 2x1: 45-55 mph
Rural Highways 2x2: 45-70 mph
Empty rural roads: 5-100 mph(*)
Urban Highways: 50 - 65 mph
Expressways: lolwut
Urban Roads
2x1: 25-35mph
2x2: 30-45mph
2x3: 40-55mph
Suburban Roads
2x1: 25-40mph
2z2: 30-50mph
2x3: 30-50mph (55-65 grade-separated)
2x4: 45-55mph (55-65 grade-separated)
Fixed for Virginia. 70 is a recent addition, and is the exception rather than the rule on rural Interstates - 65 is the norm.

You really really shouldn't do more than 5 MPH over the speed limit, particularly in a speed trap where a radar-wielding cop might be hiding. Never drive faster than 75 miles per hour! You'll have a cop on your ass in a heartbeat. Speeds on Interstate 81 are about the same as the speed limit (65), but other interstates are less crowded so the speed is usually about 70 with a 65 MPH speed limit.

People nearly always obey, or almost obey, the speed limit, so if you obey the speed limit everyone's happy, but if you drive too fast you'll have problems. I haven't been very far from Virginia, but from what I've found on teh interwebs, Southern drivers are mostly very safe and courteous, with a tiny minority of extremely dangerous drivers; I think that's safer from what I perceive to be the norm in NJ, where most drivers are moderately unsafe.

Note that in Falls Church, speed limits are excessively low and the entire town is a speed trap. I tend to drive 2-3 MPH under the speed limit there.

(*)Anything from tractors to rednecks, which might or might not have a cop after them.
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Old July 15th, 2010, 10:42 PM   #855
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Fixed for Virginia. 70 is a recent addition, and is the exception rather than the rule on rural Interstates - 65 is the norm.

You really really shouldn't do more than 5 MPH over the speed limit, particularly in a speed trap where a radar-wielding cop might be hiding. Never drive faster than 75 miles per hour! You'll have a cop on your ass in a heartbeat. Speeds on Interstate 81 are about the same as the speed limit (65), but other interstates are less crowded so the speed is usually about 70 with a 65 MPH speed limit.
I get depressed even by reading that. I feel most comfortable at about 90 mph/140-150kmh. That's my cruising speed on restricted German Highways. Why is speed limit so low in USA? I'm just curious, sorry if you've discussed it already.
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Old July 16th, 2010, 12:07 AM   #856
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In the 1973 oil crisis, the Americans introduced a federal maximum speed limit of 55! In the 1990's this was undone, and American speed limits are slowly growing.
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Old July 17th, 2010, 10:34 PM   #857
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In the 1973 oil crisis, the Americans introduced a federal maximum speed limit of 55! In the 1990's this was undone, and American speed limits are slowly growing.
Yes, that is true. Fortunately, they American didn't go the way of some northern European countries where gas stations were closed on Sundays an, in cases like Italy and Denmark, even non-essential traffic was forbidden on Sundays Advantages of being dependent on cars is that your country will make everything to keep people and goods moving by them

As for limits: the blank rural Interstate limit is really growing. Almost every non-coastal state already have a 75 mph limit.
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Old July 17th, 2010, 10:46 PM   #858
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As for limits: the blank rural Interstate limit is really growing. Almost every non-coastal state already have a 75 mph limit.
Not exactly....

Here's a map (Virginia recently increased speed limits on rural Interstates to 70 mph.)
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Old July 17th, 2010, 11:20 PM   #859
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Is there anywhere else besides Michigan where speed limits are posted with the max through urban areas? I-75, 96, 94 , 696 and 275 are posted at 70 through Metro Detroit. With the exception of within a few miles of downtown where it drops to 55 but unless you have a death wish I wouldn't advise you going anywhere near 55.
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Old July 17th, 2010, 11:23 PM   #860
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Only 70 km/h in half the US? (Just kidding, I know it's 70 mph (112 km/h))

As I know, the A-23 Huesca's bypass is limited to 100 km/h (62 mph)
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