Related Experiment Video
Updated: Jun 5, 2025
14:55
Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street
Published on: January 20, 2023
3.2K
Multiple factors on driving load in mountain area at night based on factor analysis
Hao Li1,2, Heng Jiang1,2, Jiabao Yang1,2
1School of Civil Engineering Architecture and the Environment, Hubei University of Technology, Wuhan, China.
Plos One
|December 6, 2024
Summary
Optimizing plant spacing and traffic auxiliary facilities can reduce driver distraction and mental workload. Zero traffic flow and no driving tasks minimize driver workload, enhancing nighttime mountain driving safety.
Area of Science:
- Traffic Safety
- Human Factors in Driving
- Environmental Psychology
Background:
- Driving environments significantly impact driver mental workload and fatigue, potentially compromising safety.
- Understanding these impacts is crucial for developing effective traffic safety strategies.
Purpose of the Study:
- To investigate the influence of external weather, road, and in-vehicle environments on driver workload.
- To analyze visual characteristics as indicators of driving load.
Main Methods:
- Simulated driving experiments were conducted on a mountainous road section.
- Factor analysis was used to examine four visual indicators: pupil area change rate, fixation duration, saccade velocity, and saccade angle.
Main Results:
- Reduced driver distraction was observed with 6-meter plant spacing and two types of traffic auxiliary facilities.
- Minimum driver workload occurred with zero traffic flow and no driving tasks.
Conclusions:
- Specific environmental configurations can mitigate driver workload and distraction.
- Findings offer theoretical support for improving nighttime mountain driving safety.
Related Concept Videos
01:29Load along a Single Axis
283
In structural engineering, the analysis of beams subjected to varying loads is a critical aspect of understanding the behavior and performance of these structural elements. A common scenario involves a beam subjected to a combination of different load distributions.
Consider a beam of length L subjected to a varying load, which is a combination of parabolic and trapezoidal load distribution along the x-axis. In this case, it is essential to determine the resultant loads, their locations, and...
Consider a beam of length L subjected to a varying load, which is a combination of parabolic and trapezoidal load distribution along the x-axis. In this case, it is essential to determine the resultant loads, their locations, and...
283
01:13Resultant of a General Distributed Loading
644
While designing structures exposed to non-uniform loads, it is crucial to consider the resultant force and its location. This resultant force is a single vector representing the net force applied due to the distributed load.
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
Examples such as load distribution due to wind and load distribution on a bridge illustrate how this concept is used to analyze and design safe, reliable structures under variable loading conditions. Most structures, such as residential buildings, bridges, and towers, are...
644
01:21Distributed Loads: Problem Solving
623
Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...
623
01:23Relation Between the Distributed Load and Shear
603
Understanding the relationship between the distributed load and shear force in structural analysis is crucial for analyzing beams subjected to various loading conditions. Consider the case of a beam experiencing a distributed load, two concentrated loads, and a couple moment.
603
01:22Design Consideration
181
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
The factor of safety is another key...
181
01:19Distributed Loads
510
Distributed loads are a common type of load that engineers and scientists encounter in various practical situations. Distributed loads often refer to a type of load spread over a surface or a structure and can be modeled as continuous force per unit area.
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
For example, consider a bookshelf filled with books stacked vertically adjacent to each other. The weight of the books is evenly distributed over the length of the shelf. As a result, the pressure at different locations on the surface of the...
510