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Old December 1st, 2014, 11:48 AM   #81
sponge_bob
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Ireland.

Ireland has 4 Tiers of Roads in effect and 3 tiers officially. The Top (National) Tier is managed by a state agency and the other 2 tiers are managed by local authorities

1. National Primary Roads. These were numbered N1 to N30 plus N40 and N50 and quite a few have been replaced by Motorway in recent years.

2. National Secondary Roads. These are numbered N51 to N99. None have been upgraded to Motorway.

3. Regional Roads. These are numbered Rnnn

4. Local Roads, These are numbered Lxxxx to Lxxxxx

Traffic Counters exist for Tiers 1 and 2. Some traffic counters exist on Tier 3 but these are generally downgraded Tier 1 routes where a motorway has replaced a Primary Road.

Those (almost live) Traffic Counts are here

http://www.nra.ie/network-monitoring.../traffic-data/

A Study of the Tier 2 routes including detailed traffic counts was undertaken in 2010/2011. That data is available here in large PDF files.

http://www.nra.ie/policy-publication...ds-needs-stud/

Only small and irregular fragments of traffic count data exists for Regional and Local Roads but some regional roads are much busier than certain National Primary and Secondary roads, particularly near main cities. One example is the R336.
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Old October 29th, 2015, 11:40 AM   #82
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Finland 2012-2014, interactive map: https://devtest.liikennevirasto.fi/w...onfig=liikenne

Highest AADT volumes in 2014: 90 952 (Kehä I, Helsinki)

Highest outside Greater Helsinki: 51 502 (VT 4, Oulu)
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Old November 3rd, 2015, 05:41 PM   #83
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Quote:
Originally Posted by tayano View Post
Finland 2012-2014, interactive map: https://devtest.liikennevirasto.fi/w...onfig=liikenne

Highest AADT volumes in 2014: 90 952 (Kehä I, Helsinki)

Highest outside Greater Helsinki: 51 502 (VT 4, Oulu)
ADT on Kehä I is around 120 000. Most of those roads with ADT&AADT 40 000-80 000 have just 2+2 lanes, including that one in Oulu...

Oulu and Kuopio have both great plans to upgrade their only main arteries to 3+3-4+4, but are gonna get money around 2060 I guess... The old Eastern Block passed as on traffic standards a looooong time ago with our 10 000-20 000 AADT long-distance-routes being built as 1+1 a long time ago.

Last edited by RV; November 3rd, 2015 at 05:47 PM.
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Old November 3rd, 2015, 06:12 PM   #84
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Spain 2014:

National Maps: http://fomento.es/MFOM/LANG_CASTELLA...2014/NACIONAL/

Accesos - Urban areas
Pesados - Heavy vehicles
Velocidad - Average speed

Provincial detail: http://fomento.es/MFOM/LANG_CASTELLA...14/PROVINCIAL/
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Old November 3rd, 2015, 06:13 PM   #85
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Question:
Is there a direct correlation between AADT/AAST and the amount of *horrendous* vehicular traffic congestion one experiences?

How do we infer/interpret?
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Old November 3rd, 2015, 06:27 PM   #86
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What is AAST?
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Old November 3rd, 2015, 06:48 PM   #87
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Annual average summer traffic. It is relevant in some countries with a lot of holiday traffic. For example Norwegian roads may get up to three times as much traffic during the summer months than the winter months.
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Old November 4th, 2015, 11:21 AM   #88
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So I suppose one could say there is no correlation between AADT/AAST then?
The two seem to be entirely seperate from one another.
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Old November 4th, 2015, 11:54 AM   #89
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Quote:
Originally Posted by KIWIKAAS View Post

So I suppose one could say there is no correlation between AADT/AAST then?
The two seem to be entirely seperate from one another.
Depends on the location, but generally AADT figures are always lower, because they are annual averages, in which the periods of lower traffic volumes flatten the peaks.

Concerning Finnish figures, AFAIK there are no official AAST statistics available, and ADT only for Helsinki. Comparing AADT to ADT, the same stretch of Kehä I which has AADT of 90,952 has workday ADT of 107,900 (highest traffic volume in Finland by any measure).

It would be interesting to see AAST figures for the highways radiating from Helsinki, above all VT5 which goes to the lake district around Mikkeli, where tens or even hundreds of thousands of people from Helsinki region go to their summer houses.

ADT volumes in Helsinki, September workdays 2014: http://www.hel.fi/www/Helsinki/fi/ka...s-ja-tilastot/ (click “Liikennemäärät Helsingissä, kartta” for a pdf map).

EDIT: Helsinki ADT figures are for workdays, monday to friday (now corrected).

Last edited by tayano; November 4th, 2015 at 12:37 PM.
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Old November 4th, 2015, 11:59 AM   #90
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Another factor within AADT is workday average or weekday average. The workday average contains only the average volumes from Monday to Friday and is usually higher than the weekday average, which also contains the weekend.

Some exceptions; in some areas, the weekday average contains only workdays, the entire week is referred to as the AADT. In some areas weekend traffic may be higher than workday traffic.

Traffic modelling itself goes beyond the daily average traffic, but usually incorporates hourly volumes to model the traffic flow. But for quick comparisons, the daily volumes are sufficient, especially because hourly volumes are often not available on the internet.
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Old November 4th, 2015, 12:01 PM   #91
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Certainly interesting for comparison
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Old November 4th, 2015, 12:04 PM   #92
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Quote:
Originally Posted by KIWIKAAS View Post

So I suppose one could say there is no correlation between AADT/AAST then?
The two seem to be entirely seperate from one another.
As Chris says ASDT is an important measure in major holiday destinations like Croatia Portugal and Spain where traffic can be 3x or 4x in summer (june-sept peaking august).

So you need a 1+1 road 8 months of the year and a 2+2 in summer. Half profile motorways with inevitable queues are the cheap solution as they are uncongested most of the time....and hellish in July and August.

On an AADT measure they often marginally justify full 2+2 but are empty 8 months of the year.
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Last edited by sponge_bob; November 4th, 2015 at 12:15 PM.
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Old November 4th, 2015, 12:37 PM   #93
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I see, the aggregate as opposed to the actual monthly usage.
I can certainly imagine that this would be especially relevant for motorways like the A22 in Portugal for instance.
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Old November 4th, 2015, 12:46 PM   #94
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The A2 in Portugal has an AADT of c.6k in the middle section..but 13-15k or so in high summer. It is only really needed for 2 months is what that tells us . PAI posted stats in the Portugal thread today.

The A22 is busier all year round on all sections.

ASDT is no good for Alpine ski resorts either
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