Lundi, 21 Août, 2023 - 15:00
This project develops an artificial neural network (ANN), a class of Artificial Intelligence (AI) systems, to accurately model and predict future delays at an intersection. Developing such modeling and prediction systems raises considerable data privacy concerns and it is incumbent upon municipal, state, and federal branches of government to prioritize citizens...
Mardi, 6 Juin, 2023 - 15:15
There are emerging concerns around the potential negative impact that the rapidly growing ‘gig economy’ may be having on overall road safety. The ‘gig economy’ means work done outside of the traditional employer–employee relationship, on an ‘as and when needed’ basis. The research aimed to better understand the road...
Mardi, 6 Juin, 2023 - 15:15
Researchers conducted eight large-scale laboratory tests to assess the combined impact of hot-mix asphalt (HMA) overlay mix and thickness on its performance to control reflective cracking. Bonding efficiency, flexibility, and stiffness of the HMA mix as well as overlay thickness significantly affect an overlay’s performance against reflective cracking....
Mardi, 6 Juin, 2023 - 15:15
This project focused on the evaluation of the influence of nanoadditives on the hydration kinetics, mechanical properties, and durability of concretes with and without supplementary cementitious materials (SCMs). The types of nanomaterials used in the course of this study included nano-titanium dioxide (nano-TiO2) and two forms of nanosilica. A series of...
Mardi, 6 Juin, 2023 - 15:00
The purpose of this project is to acquire a laser scanner and explore its utilities for creating digital twins of infrastructure systems to support infrastructure management. In joint with an ongoing project with NJ Transit OEM on developing an early flood warning system, the project focused on applying the laser scanning and building modeling technologies to...
Mardi, 6 Juin, 2023 - 15:00
The South Dakota Department of Transportation (SDDOT) sought to enhance its safety program by investigating different methods of evaluating completed highway safety improvement projects. As a first step, the researcher completed a comprehensive literature review, using the results to develop a state survey. Upon approval of the state survey by the project...
Lundi, 29 Mai, 2023 - 14:45
Roadsides contain promising habitat for insect pollinators, yet roadside restorations can be expensive and are rarely evaluated for effectiveness. Where do we establish pollinator-friendly revegetation to maximize benefits? How effective are current revegetation practices at providing habitat for pollinators? We address these questions with two studies. Chapter...
Lundi, 29 Mai, 2023 - 14:30
Many bridges are built without accommodations for active transportation users and only serve motorized traffic. The pedestrians and bicyclists who rely on these bridges are exposed to safety-related concerns and their access to equal employment opportunities and essential services may be hindered.
The TRB National Cooperative Highway Research Program's...
Lundi, 29 Mai, 2023 - 14:30
The Infrastructure Institute has launched a study to examine the potential to capture increased land value resulting from new transit infrastructure. This model can accelerate the development of the critical public infrastructure at the heart of transit-oriented communities.
Land value capture allows governments to reclaim a portion of increases in land...
Lundi, 29 Mai, 2023 - 14:30
Non-motorist fatalities pose a serious concern to traffic safety initiatives within the state of Utah. Past research has examined the characteristics associated with fatal pedestrian crashes in depth, however, considerably less study has been done to understand the contextual factors surrounding these incidents. Pedestrian crashes may be influenced by...
Lundi, 29 Mai, 2023 - 14:30
Performance management has become increasingly important for transportation agencies in recent years. A key component of performance management is setting targets, which can be challenging.
NCHRP Web-Only Document 358: Developing a Guide to Effective Methods for Setting Transportation Performance Targets, from TRB's National Cooperative Highway...
Lundi, 30 Janvier, 2023 - 15:45
Dedicated bus facilities are being installed across the country with many jurisdictions allowing cyclists to use these facilities. Known as shared-bus bike lanes (SBBLs), these facilities are built with two, often opposing, goals in mind: (1) provide a high-speed travel lane for buses and (2) provide a safe travel lane for cyclists. Using video observation and...
