Individual paper (pdf - 2.4MB)

Although there are numerous projects and references related to the assessment of risks associated with climate change in general, it is not currently easy to carry out specific studies on road networks or sections. In this regard, the World Road Association (PIARC) has been working since 2015 on the development of a methodological framework to facilitate the incorporation of climate change considerations [...]

Individual paper (pdf - 165KB)

Technological innovations have led to the tunnel concept evolution from civil works to technological infrastructure, where technology overcomes the geometric-functional limits, increasing its operating capacity. Today, the tunnel system must have the ability to adapt to scenarios in which transportation is based on guided or self-driving cars, with internal combustion engines or electric motors, that [...]

Individual paper (pdf - 478KB)

The East Nippon Expressway Company Limited (NEXCO East) , Kanto Regional Head Office (KRHO) manages approximately 1,400 km of high-standard toll roads, including around 2,700 bridges, 27 of which are truss bridges. Damage gusset plates in truss bridges can lead to sudden collapse. Since not all sites have engineers to assess bridge risks, KRHO plans to trial “Load Rating” methods to enhance road [...]

Individual paper (pdf - 1.3MB)

As climate change increases the frequency and extremity of severe weather events, understanding the behaviour of different road surfaces under heat stress becomes increasingly important for maintaining a resilient infrastructure. High temperatures may increase the risk of: • delays in opening newly installed pavement renewals to traffic, • asphalt deformation or texture loss, • concrete [...]

Individual paper (pdf - 2.3MB)

A 30-year strategic analysis was conducted for the Finnish road network to determine the optimal condition and maintenance budget. The optimal condition of the road was defined separately for each sub-network using both IRI (International Roughness Index) and rutting values, estimated unit costs, temporal combinations of maintenance work currently in use and future traffic estimates for different [...]

Individual paper (pdf - 1.6MB)

According to IPCC-AR6, climate characteristics in Asia are diverse and cover all climate zones from tropical to polar, including mountain climate. South, Southeast and East Asia are characterized by monsoon winds and associated precipitation. Extreme rainfall events and associated flooding occur frequently in monsoonal Asia (i.e. South-East, South and East Asia). Tropical cyclones also affect East [...]

Individual paper (pdf - 808KB)

Roadside fires pose safety risks to road networks in the Netherlands due to smoke formation and hazards to road users. These fires occur dozens to hundreds of times annually, primarily due to human causes. Factors such as vegetation, drought, and wind direction influence the fires. With the anticipated increase in drought conditions due to climate change, the frequency and intensity of wildfires are [...]

Individual paper (pdf - 602KB)

After nearly three decades of large-scale infrastructure construction, China has established the world's largest highway network. But in recent years, various disasters have occurred frequently, particularly several major natural disasters in 2023 and 2024 that caused network-level paralysis of the road system. This prompted the Chinese government to plan and invest USD 10 billion in the digital transformation [...]

Individual paper (pdf - 5.0MB)

Since its opening in 2017, the Queensferry Crossing, a major three span cable stayed bridge over the Forth Estuary, has been closed on four occasions due to snow-ice accreting to the overhead stay cables and towers and falling onto the carriageway below. Falling snow-ice fragments have caused damage to vehicles requiring the bridge to be closed to prevent a serious road accident. The implementation [...]

Individual paper (pdf - 446KB)

In asset management, road resilience describes how road maintenance measures can prevent or at least slow down the deterioration of current road networks within the limits of available resources. Resilience also describes how quickly, with minimal disruption, roads can be restored to sufficient service level after hazards and other types of disruption. In cold climate areas, such as Finland, seasonal [...]

Individual paper (pdf - 456KB)

Climate change is leading to an increase in the frequency and intensity of extreme meteorological events, particularly exceptional rainfall. This trend is having a major impact on transport infrastructures, particularly on hydraulic structures designed to restore natural flows. Flows in excess of their hydraulic capacity can lead to deterioration or even ruin of the structures, and consequently to [...]

Individual paper (pdf - 1010KB)

The challenge faced by national, regional and municipal administrations in the cost- and resource-efficient planning of new construction and maintenance measures on the road network is that the condition of road sections can be assessed primarily on the basis of the surface. The condition of the underlying asphalt layers is usually unknown or can only be roughly estimated. In order to improve these [...]

Individual paper (pdf - 2.6MB)

Route Nationale 90, which links Albertville to Moûtiers in Savoie (France) and serves the Trois Vallées and Haute-Tarentaise ski areas, was upgraded to 2x2 lanes before the 1992 Albertville Winter Olympics. In the Ponserand defile, between Aigueblanche and Moûtiers, the RN90 is exposed to a high rock risk from the cliffs upstream, at heights of up to 300 metres, with boulders of up to several hundred [...]

Individual paper (pdf - 539KB)

Historically, the sizing of pavements in France with respect to the phenomenon of frost is based on an obsolete standard, NF P98-080-1, which uses previously measured daily average temperatures. Current and future climatic conditions make this standard outdated compared to present needs and necessitate the introduction of a predictive climate notion. The predictive update for calculating the reference [...]

Individual paper (pdf - 464KB)

Road networks, in particular national networks, are of crucial importance to society. As an example, in Switzerland, the 2,259 km of national roads, less than 3% of the road network, account for around 45% of road traffic and 70% of road freight traffic. In the field of road infrastructure management, the concept of resilience is most often addressed from the perspective of major failures that affect [...]

Individual paper (pdf - 1.6MB)

Urban growth in Peru has lacked comprehensive planning, adversely affecting road infrastructure and its capacity to adapt to climatic events. Lima, historically arid, has experienced unusual rainfall in recent years that has overwhelmed its urban drainage systems, leading to flooding, accelerated erosion, and structural failures in streets, avenues, and bridges. This deterioration compromises not [...]

Individual paper (pdf - 902KB)

Ensuring the resilience of transportation infrastructure, particularly roads and bridges, is critical, especially in regions vulnerable to natural hazards such as earthquakes. This study examines asset management strategies to enhance road network resilience, using the Flyover Djuanda in Sidoarjo, Indonesia, as a case study. Officially opened on September 6, 2024, the flyover was built to alleviate [...]

Individual paper (pdf - 998KB)

Highways are the arteries of London, supporting a thriving environment of economic activity and millions of journeys every day. They support healthy travel choices and social activity and are vital to London’s status as a competitive city. London’s infrastructure has been experiencing accelerating deterioration over the years, with funding constraints, scarce resources and climate change imposing [...]

Individual paper (pdf - 788KB)

Bridges, as one of the primary elements in road networks that facilitate the continuity of logistics traffic, require effective management tools to enable easier monitoring and evaluation. As an advanced country with a complex road network, Japan has utilized visual inspection data of bridges to predict bridge conditions over their service life. The Intelligent Bridge Management System (iBMS), developed [...]

Individual paper (pdf - 2.4MB)

In winter, the roads leading to the Savoie resorts are particularly busy. Route Nationale 90, which links Albertville to Bourg-Saint-Maurice, is the only road that serves a large number of prestigious mountain resorts: Les Trois Vallées, La Plagne, Les Arcs, Tignes and Val d'Isère. Average annual daily traffic on the route in both directions can rise from 20,000 vehicles/day to 70,000 vehicles/day [...]

Individual paper (pdf - 1.3MB)

Gravel roads comprise a considerable part of the public road network in many developed and developing countries. Although they carry only a small share of the traffic performance, they provide essential accessibility for people and industry. Gravel roads are vulnerable to extreme weather conditions and seasonal changes, such as heavy rains, flooding and temperature fluctuations below and above zero. [...]