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COST 345 - Procedures Required for the Assessment of Highway Structures
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5 |
7197 |
29.01.2009 |
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Because there has been no substantial effort to develop common standards for the maintenance of highway structures, COST Action 345 was undertaken to describe current European practice on the inspection, assessment, maintenance and repair of the stock of in-service highway structures. Information on the stock of highway structures and current expenditure levels was obtained and requirements for future work were defined. A reliable, integrated system of inspection, assessment and maintenance is r ...[more] |
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The Effects of Commercial Electronic Variable Message Signs (CEVMS) on Driver Attention and Distraction: An update
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3 |
5307 |
08.02.2009 |
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Review of research concerning the possible effects of Commercial Electronic Variable Message
Signs (CEVMS) used for outdoor advertising on driver safety. Such CEVMS displays are alternatively known as Electronic Billboards (EBB) and Digital Billboards (DBB). The report consists of an update of earlier published
work, a review of applicable research methods and techniques, recommendations for future research, and an extensive bibliography. The literature review update covers recent post-hoc cra ...[more] |
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Monitoring of Long Term Pavement Performance (LTPP) – Progress Report, December 2008
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5 |
4537 |
10.02.2009 |
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The objective of this project is to collect and deliver high quality road data primarily for the development of performance prediction models. The monitoring of the LTPP sections started in 1984 on commission of the Swedish Road Administration. The aim is primarily to focus on road deterioration caused by heavy traffic. The project started with a limited amount of sections but the number, both active and inactive, has increased to 655 sections distributed over 66 sites. Budget restrictions in 20 ...[more] |
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BASt Report: Effects of new vehicle concepts on the infrastructure of the federal trunk road network
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4 |
5025 |
11.02.2009 |
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Für die Untersuchungen beim Einsatz von Lastzugkombinationen wurde in der Bundesanstalt
für Straßenwesen eine Arbeitsgruppe unter dem Titel „Einsatzmöglichkeiten bzw. Auswirkungen
von 60 t-Lkw auf Bundesfernstraßen“ eingerichtet. Sie wurde mit Vertretern der
Abteilungen „Straßenverkehrstechnik“, „Fahrzeugtechnik“, „Brücken- und Ingenieurbau“ und
„Straßenbautechnik“ besetzt.
Die Untersuchungen der Arbeitsgruppe konzentrierten sich i ...[more] |
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BASt Report: Effects of new vehicle concepts on the infrastructure of the federal trunk road network
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5 |
5218 |
11.02.2009 |
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BASt studied the “Possibilities for use and effects of 60 t trucks on federal trunk roads" The investigations of the working group focussed on the following issues influenced by an introduction of tractor-trailer combinations:
• Effects on road damage
• Effects on bridge damage
• Ability to use traffic facilities
• Influence on traffic flow
• Accident occurrence ...[more] |
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Experimental Testing of a Moving Force Identification Bridge Weigh-in-Motion Algorithm
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0 |
4504 |
27.02.2009 |
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Bridge weigh-in-motion systems are based on the measurement of strain on a bridge and the use of the measurements to estimate the static weights of passing traffic loads. Traditionally, commercial systems employ a static algorithm and use the bridge influence line to infer static axle weights. This paper describes the experimental testing of an algorithm based on moving force identification theory. In this approach the bridge is dynamically modeled using the finite element method and an eigenval ...[more] |
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The effects of long and heavy trucks on the transport system. Report on a government assignment
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0 |
4979 |
30.03.2009 |
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Trucks up to 25.25 metres in length and weighing up to 60 tonnes are permitted in domestic traffic in Sweden. This deviates from the EU standard, according to which trucks are not to be longer than 18.75 metres or weigh more than 40 tonnes.
The Ministry of Enterprise, Energy and Communications has commissioned VTI to study what economic consequences this deviation has had for Sweden and to describe the competition interface between road and rail transport. The effects on transport costs for bus ...[more] |
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TRL462 Cycle track crossings of minor roads
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0 |
4705 |
23.04.2009 |
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Cycle tracks can help cyclists to avoid sharing busy roads with motor vehicles. One of the main problems with providing them, however, is the design of crossings of minor roads. This introduces a hazard and cyclists are usually required to give way. Highway authorities have been reluctant to give priority to cyclists in case drivers fail to observe the priorities and casualties occur. This project investigates the safety and effectiveness of a variety of cycle track crossing arrangements at mino ...[more] |
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TRL377 Traffic calming - sinusoidal, `H' and `S' humps
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0 |
5230 |
23.04.2009 |
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The original work on speed reducing road humps was carried out in the 1970's at TRL and was based on circular profile (round-top) humps of various dimensions. These track trials led to the adoption of the 'standard 3.7 metre long' circular profile hump which can be up to 100 mm high. Since the 1980's the regulations governing the use of road humps in Great Britain have been gradually relaxed to allow greater flexibility in the shape of humps so as to include flat-top humps, raised junctions and ...[more] |
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TRL548 Vehicle-activated signs - a large scale evaluation
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0 |
4831 |
23.04.2009 |
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There is an established, positive relationship between vehicle speeds and road accidents. On rural roads, driving too fast for the conditions is more likely to be a factor in accidents than exceeding the speed limit. Encouraging drivers to drive at suitable speeds for the conditions is particularly important, since driver error is the major contributory factor in 95 per cent of accidents. A range of rural road safety engineering measures, in particular vehicle-activated signing, has been develop ...[more] |
