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Old September 8th, 2011, 08:06 PM   #1
Botev1912
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How often do they repave the freeways/motorways/highways/streets in your country/state

How often should they repave the roads, so they are in good condition? How often do they do it in your country?

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Old September 8th, 2011, 10:02 PM   #2
seem
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In Slovakia? Never. ;D
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Old September 8th, 2011, 10:19 PM   #3
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Quote:
Originally Posted by Botev1912 View Post
How often should they repave the roads, so they are in good condition? How often do they do it in your country?
In northern California, asphalt freeways are usually repaved every 10 years or so depending on available funding.

Concrete freeways are seldom "repaved". Instead, Caltrans replaces damaged concrete in sections (approximately 12 feet wide by 10 ft long). The new sections are ground down to level the driving surface. Concrete roads are expected to have a serviceable life of 20-30 years. Much of California's concrete freeways are over 30 years old and are still in fairly good shape.

One of the oldest concrete freeways in California is I-80 over the Sierra Nevada mountains. Thankfully, that 50+ year old concrete is being replaced with an entirely new concrete surface. The downside is that it's taking Caltrans over 5 years to do this because it has to remove the old concrete *and* roadbed and essentially start from scratch. According to construction documents, the new road surface has a life expectancy of 20 years.
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Old September 8th, 2011, 10:33 PM   #4
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Most motorways carry more traffic than originally foreseen. However, cars create very few wear to any pavement type, they're simply not heavy enough. Trucks have become heavier through the years, but as long as the axle count increases too, there shouldn't be too much of a problem, as long as axle load doesn't increase it has little influence on pavement. The number of trucks does have influence of course, that's why so many older concrete motorways, together with relatively low construction standards in the 1960's and 1970's, are now in a deteriorated condition.

An example is the Dutch A1 / German A30 between Hengelo and Osnabrück. This motorway was constructed in the 1980's, but as the Iron Curtain still existed in those years, not much truck traffic was there in those days. However, after the fall of the curtain and the reunification of Germany, truck traffic soared, and it really boomed when the economy of Poland got in a high gear. Nearly all concrete slabs were broken, and they were finally replaced by asphalt last year.
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Old September 9th, 2011, 11:16 AM   #5
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They repaved the E07 South of Huesca in 2008. I don't know if it was repaved before, so I think in Spain they repave roads every 10-15 years.
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Old September 9th, 2011, 01:06 PM   #6
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Quote:
Originally Posted by Botev1912 View Post
How often should they repave the roads, so they are in good condition? How often do they do it in your country?
Finland: According to the official statistics, there are was 51,016 km of paved roads on the public road network (streets excluded) in 2010. The same statistics tells that 3,174 km of that network was repaved in 2010.

The arctic conditions cause a few special implications:

- The concrete slabs do not work as the pavement material.
- The studded winter tires wear the asphalt causing grooves.

The basic assumption is that the 'average' main roads will be repaved about every seven years. The lower network will be repaved more seldom, and usually due to the deformation of the road structure.

For the busiest roads, there is a rule of thumb: every 10000 of AADT per a lane increases the groove depth by 2 millimetres by year. As the maximum acceptable groove depth is 15 millimetres, the busiest roads are repaved every 2-3 years.

The AADT on the right lanes of the motorways is usually higher than on the left ones. That is why the cost is often optimized by repaving the right or the left lane only.
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Old September 9th, 2011, 07:00 PM   #7
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In Estonia repaving of highways depends on the available funds and the AADT and IRI (International Roughness Index) of a particular road. This means that major highways are repaved after 10 years or less while minor routes may have a pre 1990 pavement. What's also common on smaller roads is surfacing where they cover the road with granite rubble using bitumen. This only works when the road surface is still relatively intact. It's cheaper than repaving but makes the ride a lot more noisy.
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Old September 9th, 2011, 07:06 PM   #8
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the connecting road to my village is almost 60, the main road is almost 40 years old
id rate their quality at 5/10 and 8/10 respectively
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Old September 9th, 2011, 10:46 PM   #9
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Not very
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Old September 9th, 2011, 11:47 PM   #10
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In British Columbia, it depends on the location and/or if there's already a project going on where the road needs to be dug up. Otherwise, it's simply spot patching, or repaving a short (generally 2 km) stretch of highway. Usually, it's just an overlay of the existing asphalt or chip seal on non main routes, milling and re laying of asphalt on main ones.

A 2 km section of BC HWY 5, just south of the village of McLure was repaved after the construction of a southbound passing and northbound, left turn lane was built. The same was done with a new passing lane for both directions just north of Falkland.

At the Municipal level, it depends on location. For example, the City of Vernon has an extensive paving program, whereas the City of Kamloops is like: Street maintenance? What is this street maintenance you speak of? Useless f**kers.
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Old September 11th, 2011, 03:50 AM   #11
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The main Autobahn leading out of this city (A656) in Germany was recently repaved (last year and earlier this year). Before that some stretches were still the original 1936 concrete slabs... and some other stretches still are.

For lesser roads, the B3 in the area going through the city is currently undergoing a rolling renovation, always 1 km at a time. Last time that was done was around 1955/56. Last stretch will probably be finished around 2015 for the current rollover.
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Old January 15th, 2012, 11:00 AM   #12
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Our first motorway in Ireland the Naas bypass was completed around 1986.

That surface lasted nearly 20 years and the wearing course was re done in the mid 2000's think 2005.

That is busiest in Ireland so some last longer than others
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Old January 16th, 2012, 01:18 AM   #13
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In the UK motorways and other main roads used to be paved with hot rolled asphalt (HRA) which used to give a good 10-20 year service life. For some reason the Highways Agency, who look after the UKs national trunk road and motorway network, and most local authorities, decided to start using stone mastic asphalt (SMA).

SMA when laid is a very smooth surface, quiet and has a very black colour. However, it's now becoming bad maintenance legacy. Surfaces are breaking up in as little as two years, mainly through frost damage and heavy traffic loads. Despite the blindingly obvious evidence that SMA performs poorly the Highways Agency and local authorities still insist on using it.
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