Jeudi, 18 Avril, 2024 - 18:15
Promoting the shift from private cars to micromobility (e.g., bike, e-bike, scooter) can represent a valuable action to improve city sustainability and liveability. Micromobility can help to replace trips by individual private cars (e.g., daily short round trips) as well as to improve coverage and accessibility of transit services, and, subsequently, to reduce...
Jeudi, 18 Avril, 2024 - 18:15
The transport sector currently faces a number of disruptions related to geopolitics, climate change and energy security. Transport system resilience refers to the sector’s capacity to deal with, adapt to and recover from such disruptions. This report sets out the main disruptions to transport systems worldwide. It explores ways to reduce uncertainty by...
Jeudi, 18 Avril, 2024 - 18:15
In recognition of the prevalence of asphalt concrete (AC) overlays as a rehabilitation solution for existing portland cement concrete (PCC) pavements, this project looked at State Departments of Transportation (DOTs) practices for the evaluation, design, construction, maintenance, and rehabilitation of AC/PCC composite pavements. This was primarily accomplished...
Jeudi, 18 Avril, 2024 - 18:00
Deciding when to remove spring load restrictions (SLRs) on roadways is complicated given the variable time window during and after thawing when excess moisture remains in the base and subgrade layers, causing the overall roadway structure to remain weak. The main objective of this project was to develop an economical and easy-to-use protocol for timing SLR...
Jeudi, 18 Avril, 2024 - 18:00
The ability to fully quantify the expected safety benefits of Complete Streets transformations using crash-based, data-driven safety analysis (DDSA) methods such as those in the Highway Safety Manual (AASHTO 2010) is limited. The lack of crash modification factors (CMFs) for many Complete Streets treatments is a primary reason for this limitation. When CMFs for...
Lundi, 8 Avril, 2024 - 15:30
Transportation infrastructure is vulnerable to threats such are natural and man-made hazards and each agency needs to improve their own ability to adequately and decisively respond to sudden and unforeseen challenges to infrastructure performance. It is pivotal for countries to learn from past experiences to form a shared view on possible future development of...
Lundi, 8 Avril, 2024 - 15:30
This report is the second of two planned publications of PIARC Task Force 4.1 “Road Design Standards” in the period 2020 – 2023. PIARC considered the importance of comparing international road design standards to check their updated status and the degree of their readiness to face the forthcoming innovations in road mobility.
The full report...
Lundi, 8 Avril, 2024 - 15:30
In 2020, the ITF published Safe Micromobility, a report assessing the safety of micromobility and new mobility services. In the four years since publication, much has changed in terms of the evidence base regarding the safety of micromobility. This report summarises an analysis of the current evidence base of the most recent micromobility safety trends and...
Lundi, 8 Avril, 2024 - 15:15
Hydrated lime is widely used in Australia to reduce the moisture susceptibility of asphalt mixes in service. However, the local asphalt industry is concerned about the sustainability of the continued use of hydrated lime in asphalt. This report presents the findings of a desktop review of the potential use of alternative liquid anti‑stripping agents. A...
Lundi, 25 Mars, 2024 - 14:00
A before-and-after study of speed changes in one Minnesota city shows that changing posted speed limits may not—at least initially—cause drivers to slow down. This new finding is important for Minnesota’s state and local transportation agencies as they continuously search for the most effective ways to reduce unsafe speeds and meet their...
Lundi, 25 Mars, 2024 - 13:45
As vehicle technology advances, Traffic Incident Management (TIM) and emergency responders (ERs) are facing unprecedented circumstances in knowing how to engage with and respond to connected, automated vehicles (CAV). Uncertainty is complicated by limited communications and information exchanged between CAV developers, TIM, and ERs.
NCHRP Research Report...
Lundi, 25 Mars, 2024 - 13:45
Potholes in asphalt pavement surface have detrimental effects on asphalt pavement deterioration and traffic safety. Cost-effective pothole repair methods are needed for highway agencies at all levels. This project aims to identify and evaluate innovative tools, technologies and materials for pothole repair in New Jersey. The pothole repair methods that have...
