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Old September 5th, 2007, 08:17 AM   #1
TheCat
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Electronic Signs/Traffic Management Systems

Post here pictures and discussions of electronic signs and traffic management systems on highways/motorways. While they are not always necessary, and I presume their usefulness can be a topic of debate, I just think that these "gadgets" look really cool and make motorways look very modern So post pictures and anything related to them .

Unfortunately in North America these things are generally not common, but the 401 in Toronto does have some electronic traffic situation updates, I'll post a few pictures of them later if no one else does so before me.
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Old September 5th, 2007, 09:28 AM   #2
hkskyline
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In Hong Kong and throughout Japan, there are time indicators to reach upcoming destinations (ie. 10 minutes to X, 14 minutes to Y), which provide a good estimate of traffic conditions.
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Old September 5th, 2007, 09:46 AM   #3
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Quote:
Originally Posted by hkskyline View Post
In Hong Kong and throughout Japan, there are time indicators to reach upcoming destinations (ie. 10 minutes to X, 14 minutes to Y), which provide a good estimate of traffic conditions.
That's quite cool, I believe I saw things like that in NYC when I was there earlier this summer.
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Old September 5th, 2007, 10:10 AM   #4
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In the Netherlands, there is quite extensive signalling, but mostly limited to the most congested roads (in other words, much of the country).

1. These signs indicate a maximum speed. If a traffic jams starts to exist, this kind of signs are fully automatic set to a safer speed, also further upstream, so people get noticed there is a traffic jam, and people don't drive with 120km/h at a traffic jam, but with 90, 70 or 50km/h. This really reduces head/tail accidents.
[IMG]http://i1.************/4m8kugi.jpg[/IMG]

2. These signs can also indicate if a lane is closed. This can be done by various reasons, an accident, incidential road inspection, when a right lane have to be closed to let a truck with a damaged car acces the road, or when an extra lane is closed outside rushhours.
[IMG]http://i1.************/66yuj4n.jpg[/IMG]

3. This sign can display various messages in case of events around Amsterdam.
[IMG]http://i7.************/5y96syh.jpg[/IMG]

4. A VMS (Variable Message Sign). Now it indicates a traffic safety advertorial reading: "wear seatbelts, also in the back".
In rushhours it displays driving times to points on the southern side of Amsterdam, like "interchange Badhoevedorp 41 minutes".
[IMG]http://i3.************/6hho137.jpg[/IMG]

the Netherlands was one of the first or maybe even the first country to widely implement this system on it's motorway network. This has nowadays one disadvantage; the technique is quite old (dating back from the seventies!) so replacement is needed, but it's very expensive.

some facts;
Traffic signalling (like in the first 2 posts): 980 km of 2400km.
Various Message Signs: 102, mostly in the Delta metropolis and near larger cities.
First Traffic control center for signalling: Delft, 1979.
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Old September 5th, 2007, 10:33 AM   #5
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In the philippines, there is NUMBER CODING to reduce the no. of vehicles in Manila.

example: all plate nos. ending in 1 & 2 can't use their car every Monday.

1,2- Monday
3,4- Tuesday
5,6- Wednesday
7,8- Thursday
9,0- Friday

No number coding during weekends.

that's not so cool to me.
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Old September 5th, 2007, 10:37 AM   #6
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Croatian motorways

LINK... Croatian motorways




[IMG]http://i7.************/2e5k26a.jpg[/IMG]





[IMG]http://i16.************/2qxrk0w.jpg[/IMG]

[IMG]http://i12.************/44tr8lz.jpg[/IMG]

[IMG]http://i12.************/4ozw26o.jpg[/IMG]

[IMG]http://i11.************/5zqy1lf.jpg[/IMG]



[IMG]http://i17.************/4beyemt.jpg[/IMG]

[IMG]http://i4.************/4cmr6ok.jpg[/IMG]

Thanx x-type, it should be ok now.

Last edited by KHS; September 5th, 2007 at 12:59 PM.
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Old September 5th, 2007, 12:35 PM   #7
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khm, no dynamic signalization on last 2 photos
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Old September 5th, 2007, 02:09 PM   #8
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We have some electronic matrix signs on our motorways:


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Old September 5th, 2007, 02:53 PM   #9
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What does that last sign mean?
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Old September 5th, 2007, 03:17 PM   #10
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Quote:
Originally Posted by Chris1491 View Post
What does that last sign mean?
Rest stop 3kms ahead. If tired,have a break.
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Old September 5th, 2007, 07:53 PM   #11
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Italy:

Variable signs in morning rush hour in Mestre (Venice):


Timing signs (between Bologna and about 150 km south of Florence/Firenze, fairly accurate in normal traffic density
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Old September 5th, 2007, 08:12 PM   #12
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I know Chicago has dozens of the large "detailed message signs" that are posted over the large tollways around the area. The first priority is to report crashes or closures, then missing children or vehicles that are urgently wanted by police, then travel times from point to point, then generic safety messages (Use Seatbelts / Don't Drive Drunk). I usually just see the travel times posted, which are up to date through tollway transponders on cars, and roadway measuring devices as to car speeds.

example on 88 I saw earlier this week:

Travel Times:
to Rte 59 | 6 min
to I-355 | 20 min
to I-294 | 34 min
Dwntwn | 54 min



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Old September 5th, 2007, 09:44 PM   #13
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Great thread, I really like the pictures

In Toronto we have some VMS signs, mostly on Highway 401, which usually simply say whether the collector and/or the express are moving slowly or moving well. They also display advertisements such as "wear your seatbelt".

Here's one on the 401:


And on the QEW:
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Old September 5th, 2007, 10:31 PM   #14
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Germany: Destinations can change on these signs using so called "Wechselwegweiser" to by-pass traffic jams etc.




you see that each destination is surrounded by black lines. the different destinations for one line on the sign are written on each side of a prism inside the sign which just turnes around to another destination when the gps signals a traffic jam etc.
the orange lights left and right to the sign blink when the destinations have changed

the system itself is pretty old, back to the seventies

(how it looks now)


and of course dynamic speed limits. here it is raining, so just 100.

be happy if you can reach 60 here


you can use the shoulder on the right side if there's a lot of traffic. the sign includes many small prisms (what you can see on the 2nd pic under this text. you may only drive though that broken line at the end of this lane when there's a lot of traffic and the use of the shoulder is allowed) which turns from the empty sign in the first pic to the sign on the third/forth (with additional green light arrow) pic





the arrow on the right only appears when you have a lot of traffic and may use the shoulder.


dynamical electronic additional informations




and whole signs with electronic displays






sometimes the right lane is closed and the sign shows a red X instead of a green arrow to make that lane free for the incoming traffic later in that interchange

hope you can see all the pictures, I dunno if it works correctly

Last edited by Patrick; September 6th, 2007 at 12:07 AM.
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Old September 5th, 2007, 11:22 PM   #15
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in Croatia we also have those "electro-mechanic" dynamic signs beside standard dynamic signalization




















and some more standard

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Old September 5th, 2007, 11:36 PM   #16
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"electro-mechanic" is a good description, why do i make that so complicated? who else have those? somehow i find them "charming"

but they can be really ugly like here


this is the same sign in two variations:


Last edited by Patrick; September 6th, 2007 at 12:15 AM.
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Old September 5th, 2007, 11:37 PM   #17
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I was in Holland a week ago or so for a few weeks.

I loved their variable signage. I loved how they could change speed limits so slow moving traffic like stop and go, couldn't take off from 0 to 120 and right back down to 0 in a minute later....a stable 50 or 70 km/h limit is brilliant.

I wish they'd put some of those things up in Toronto or the GTA.

I also love restrictions they have on trucks, such as restricting their movements during certain hours (like being restricted to only the right lane from say 7-11 AM and then 3-7 PM)

I still have to say I like our N/A signage better.
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Old September 10th, 2007, 01:29 AM   #18
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One more from Croatia:

[IMG]http://i1.************/4vnjoxw.jpg[/IMG]
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Old September 10th, 2007, 04:16 PM   #19
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Melbourne uses dynamic speed signs (which are way better than a sign that said "60km/h if this light is flashing") and there are several real time traffic displays:



The green line changes colour as traffic congestion worsens. The same info is available online here.
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Old September 11th, 2007, 07:02 PM   #20
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This link here http://www.trafficengland.com/TCC/ is run by the English Highways Agency.

The site show shows:

- all the traffic management signs that are currently in use around the country to help plan your route.

- incidents and accidents with expected delays, weather conditions etc.

- current travel speeds on trunk roads

This covers not ony the motorway network but also the A truck roads, most of which are 4 lane dual carriageway.

On the road:

Typically, over head signs show the advised speed limit in each lane along with a message explaining the delay or something else.

In rural areas or areas where the signs were added after the road was built there may simply just be a sign at the side of the road, overhanging the road.





They are used to close lanes, to inform of travel times to various destinations. Typically the signs are about a mile apart, although in more rural areas there may not be any, or they may be further apart. In busy urban areas the signs may be much closer together.

In some parts, signs show the compulsory speed limit rather than the advised speed limit. Compulsory speed limits have a red ring around them whereas the advisory ones are similar to the ones seen in the Netherlands above.



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