Lundi, 7 Décembre, 2020 - 18:30
An increasing number of Accessible Pedestrian Signals (APS) have been installed at new or upgraded intersections to assist people with vision impairment to navigate streets. For un-signalized intersections and intersections without APS, people with vision impairment have to rely on their own orientation and mobility skills to gather necessary information to...
Lundi, 7 Décembre, 2020 - 18:30
The Kentucky Transportation Cabinet (KYTC) maintains over two hundred steel bridges constructed with types of steel which are unknown. Kentucky Transportation Center (KTC) researchers have developed a procedure for determining steel tensile properties (0.2% yield strength and ultimate tensile strength) which can be used to help identify unknown steels. The...
Lundi, 7 Décembre, 2020 - 18:30
Non-exhaust emissions of particulate matter constitute a little-known but rising share of emissions from road traffic and have significant negative impacts on public health. This report synthesizes the current state of knowledge about the nature, causes, and consequences of non-exhaust particulate emissions. It also projects how particulate matter emissions...
Lundi, 30 Novembre, 2020 - 16:00
This Manual is a guide for quantifying and evaluating access for anybody interested in truly understanding how to measure the performance of transport and land use configurations. It contains enough to help transport and planning professionals achieve a more comprehensive look at their city or region than traditional transport analysis allows. It provides a...
Lundi, 30 Novembre, 2020 - 15:45
With the increasing availability of portable and low-cost automatic sensors that can be mounted on vehicles, this project was designed to investigate the potential of obtaining traffic data from sensors on municipal vehicles operating in the traffic streams as “mobile sensing platforms.” The public nature of municipal vehicle fleets would facilitate...
Lundi, 30 Novembre, 2020 - 15:30
This Roundtable reviews a wide range of congestion control measures, analysing their effectiveness, financial and operational requirements, implementation time and public acceptability. A strong focus is on the role of technology in addressing congestion, including sensors, wireless systems, traffic light optimisation and trip planning data. The Roundtable...
Lundi, 30 Novembre, 2020 - 15:30
The purpose of this report is to provide clarity around the design and operation of raised safety platforms and deepen understanding of leading international practice across a range of applications and performance dimensions.
A review of literature and sample site investigations have found that a community of practice around raised safety platforms at...
Lundi, 30 Novembre, 2020 - 15:30
In March 2010, the U.S. Department of Transportation (DOT) released a policy statement supporting the development of fully integrated transportation networks. The policy is to “incorporate safe and convenient walking and bicycle facilities into transportation projects.”
The TRB National Cooperative Highway Research Program's NCHRP Synthesis...
Lundi, 30 Novembre, 2020 - 15:15
Despite recent developments, the measurement of actual pavement surface deflections under the axles of a moving truck at a network level remains a challenge in pavement engineering. Several pieces of equipment have been developed in the past decade but they fail to accurately measure actual deflection. Most of them measure indicators of deflection or deflection...
Lundi, 30 Novembre, 2020 - 15:15
Urban road performance metrics, indicators and benchmarks describe how our road assets (and transport systems) are functioning and operating. Indicators in particular are useful to understand how well our road assets are performing within the context of the road users’ (and societal) expectations. This enables agencies and authorities to manage investment...
Lundi, 30 Novembre, 2020 - 15:00
Over the past 10 to 15 yr, the use of high-friction surface treatments (HFSTs) as a safety countermeasure has grown exponentially. HFSTs are pavement-surface treatments that restore or enhance pavement friction at locations with high friction demand, such as curves, ramps, and intersection approaches. While the crash-reduction benefits of HFSTs have been...
Lundi, 2 Novembre, 2020 - 15:45
The procedures detailed in the 6th Edition of the Highway Capacity Manual (HCM) estimate capacity and several operational measures, including those determining Level of Service, for freeway facilities as well as surface streets.
The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 290: Highway Capacity Manual Methodologies...
