Results 21 to 30 of about 345,568 (255)

Characteristics of variable speed limit systems

open access: yesEuropean Transport Research Review, 2018
The control algorithm used for deciding on the speed limit in variable speed limit systems is crucial for the performance of the systems. The algorithm is designed to fulfil the purpose of the variable speed limit system, which can be one or several of ...
Ellen F. Grumert   +2 more
doaj   +1 more source

Differential variable speed limits to improve performance and safety of car-truck mixed traffic on freeways

open access: yesJournal of Traffic and Transportation Engineering (English ed. Online), 2022
This study develops a differential variable speed limit (DVSL) which assigns different speed limits for car and truck, and varies speed limits based on traffic conditions.
Anas Abdulghani, Chris Lee
doaj   +1 more source

Impacts of freeway speed limit on operation speed of adjacent arterial roads

open access: yesIATSS Research, 2021
Speed limit is one of the essential factors associated with roadway safety. Spillover effect is the tendency of drivers to drive at a higher speed on relatively lower-speed non-freeway roadways after exiting higher-speed freeways.
Fadi Alhomaidat   +2 more
doaj   +1 more source

Determining Free-Flow Speed on Different Classes of Rural Two-Lane Highways

open access: yesPromet (Zagreb), 2023
Current analytical free-flow speed models consider all rural two-lane highways as the same road type despite their different functional significance in the network.
Nemanja Stepanović   +2 more
doaj  

Phantomatic Road Works in Poland: A View from a Dashboard Cam

open access: yesTransport and Telecommunication, 2023
Correct signage belongs to critical factors affecting road traffic safety. During a naturalistic driving study in Poland major mistakes associated with signage were noticed and analysed: road works were announced and speed limits were reduced from 120 km/
Pashkevich Anton   +4 more
doaj   +1 more source

Investigating the Factors Affecting Speeding Violations in Jordan Using Phone Camera, Radar, and Machine Learning

open access: yesFrontiers in Built Environment, 2022
Traffic accidents are considered the leading cause of death for the age group (5–29). They cause approximately 1.3 million deaths every year. Different factors cause traffic accidents; one of them is speeding violations.
Bara’ W. Al-Mistarehi   +3 more
doaj   +1 more source

Data-driven exploration of traffic speed patterns to identify potential road links for variable speed limit sign implementation

open access: yesUrban, Planning and Transport Research
The focus of this study is to identify potential road links suitable for implementing a variable speed limit (VSL) sign by analyzing real-world traffic speed data collected over one year in Charlotte, North Carolina, United States.
Panick Kalambay, Srinivas S. Pulugurtha
doaj   +1 more source

Speed limit for open quantum systems

open access: yesNew Journal of Physics, 2019
We study the quantum speed limit for open quantum systems described by the Lindblad master equation. The obtained inequality shows a trade-off relation between the operation time and the physical quantities such as the energy fluctuation and the entropy ...
Ken Funo, Naoto Shiraishi, Keiji Saito
doaj   +1 more source

Safe speeds: fatality and injury risks of pedestrians, cyclists, motorcyclists, and car drivers impacting the front of another passenger car as a function of closing speed and age

open access: yesTraffic Safety Research, 2022
As crash speed increases, so does the probability of injury. The vulnerability of different road users varies greatly, in part due to differences in their protective equipment. Therefore, for the same speed, their injury probabilities are different.
Nils Lubbe, Yi Wu, Hanna Jeppsson
doaj   +1 more source

How accurate is the regional travel demand model in mimicking real-world travel times?

open access: yesUrban, Planning and Transport Research, 2019
This paper provides insights pertaining to the validity of a regional travel demand model in mimicking real-world travel times. The estimated travel times from the regional travel demand model, for the base year 2015, for Mecklenburg County in the city ...
Srinivas S. Pulugurtha   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy