Results 41 to 50 of about 2,807 (138)

A perspective way for judging tunnel approach zones by cognitive-behavioral chains and predictive processing model

Underground Space
In tunnel approach zones (TAZs), drivers must complete a sequence of tasks, including detecting the tunnel, identifying speed limits, and decelerating to enter safely.
Runzhao Bei, Zijun Du, Nengchao Lyu, Zhigang Du   +3 more
doaj   +1 more source

A Geospatial Dynamic Warning Distance Model for Road Disaster Risks in Mixed-Traffic Flow Considering Vehicle Response Heterogeneity

ISPRS International Journal of Geo-Information
Road disasters such as subsidence and bridge failures pose severe threats to traffic safety. Existing warning distance calculation methods typically assume homogeneous traffic flow and overlook the spatial heterogeneity of vehicle responses across ...
Yanbin Hu, Wenhui Zhou, Yi Li, Hongzhi Miao   +3 more
doaj   +1 more source

Development of fog visibility enhancement and alert system using IoT

Cogent Engineering
Bhutan primarily relies on land transportation; hence, diverse technologies are crucial for ensuring the safety of the drivers. Dust, fog, smoke, and other dry particles often obstructs the road visibility.
Hari Prasad Acharja, Sonam Choki, Dorji Wangmo, Khameis Mohamed Al Abdouli, Kazuhiro Muramatsu, Nimesh Chettri   +5 more
doaj   +1 more source

The Impact of Autonomous Vehicles on the Transportation Network with a Focus on the Physical Road Infrastructure

Infrastructures
Significant progress in autonomous vehicle (AV) development has been made over the years through advancements in artificial intelligence, sensor technology, and data processing; however, many challenges remain, particularly regarding road safety and the ...
Ana Čudina Ivančev, Tamara Džambas, Vesna Dragčević   +2 more
doaj   +1 more source

Safe Curb Parking Distance Near School-Gate Ensuring Child Pedestrians' Safety

Transactions on Transport Sciences
The presence of curb parking near school-gate is a serious threat to the safety of child pedestrians while crossing the road. Child pedestrians with limited discernibility often cannot sense an approaching vehicle obstructed by the parked vehicle(s).
Sweta Barman, Jahnabi Goswami, Abu Taha Kamran, Subhadip Biswas   +3 more
doaj   +1 more source

Modeling of Unsymmetrical Single-lane Roundabouts based on Stopping Sight Distance

KSCE Journal of Civil Engineering, 2019
Evaluation of the adequacy of sight distance at roundabout is usually performed graphically as no quantitative guidelines are available for the lateral clearance needs. This paper presents analytical lateral clearance models to satisfy Stopping Sight Distance (SSD) at unsymmetrical single-lane roundabouts (with different entry and exit radii).
openaire   +1 more source

Evaluation of the Intersection Sight Distance at Stop-Controlled Intersections in a Mixed Vehicle Environment

World Electric Vehicle Journal
The introduction of autonomous vehicles (AVs) on roadways will result in a mixed vehicle environment consisting of these vehicles and manual vehicles (MVs). This vehicular environment will impact intersection sight distances (ISDs) due to differences in the driving behaviors of AVs and MVs. Currently, ISD design values for stop-controlled intersections
Jana Sarran, Sean Sarran
openaire   +2 more sources

Stopping-sight-distance simulation using a new probabilistic approach

, 2015
Geometric design guidelines provide deterministic analytical formulas to facilitate the calculation of the distance required to perform emergency stops on highways. Such expressions include several pre-fixed parameters that may produce an oversized or even an uneconomical outcome.
Santos Berbel, César de, Castro Malpica, María   +1 more
openaire   +1 more source

Suitability of the Euler’s Spiral for Roadside Clearance in Order to Provide Stopping Sight Distances

Journal of Transportation Technologies, 2017
The AASHTO’s guideline for geometric design, also known as the green book, requires that the inside of horizontal curves be cleared of obstructions to sight lines in order to provide sufficient sight distances. Recently, innovative use of Euler’s spiral for determination of clearance offsets has been proposed.
openaire   +2 more sources

Surgical versus non-surgical management of lateral compression type-1 pelvic fracture in adults 60 years and older: the L1FE RCT

Health Technology Assessment
Background Lateral compression type-1 pelvic fractures are a common fragility fracture in older adults. Patients who do not mobilise due to ongoing pain are at greater risk of immobility-related complications.
Elizabeth Cook, Joanne Laycock, Dhanupriya Sivapathasuntharam, Camila Maturana, Catherine Hilton, Laura Doherty, Catherine Hewitt, Catriona McDaid, David Torgerson, Peter Bates   +9 more
doaj   +1 more source