Aiming at young drivers’ hazard perception (HP) and eye movement, a cross-sectional study was conducted in the city of Xi’an, China. 46 participants were recruited, 35 traffic scenes used to test movement. The difference analysis correlation carried out for acquired data. results suggest that some indices movement are significantly correlated. A higher saccade speed is direction hazardous scenes. Higher complex result smaller angle. number hazards unidentified negatively influenced by...

Automatic train operation (ATO) system is one of the important components in advanced control systems. Ideal controllers are expected for automatic driving function ATO Aiming at intelligence requirements systems, an NSGA-II-based parameter tuning method fuzzy immune PID (FI-PID) controller and a grey model GM(1,1)-based (FGI-PID) were proposed. Taking maglev train’s as object velocity-time curve input, feasibility FI-PID applicability FGI-PID tested. The results showed that optimized...

This study aims to analyze the effect of high-altitude environment on drivers’ mental workload (MW), situation awareness (SA), and driving behaviour (DB), explore relationship among those performances. Based a survey, data 356 lowlanders engaging in activities at Tibetan Plateau (high-altitude group) 341 low altitudes (low-altitude were compared analyzed. The results suggest that differences between two groups are noteworthy. Mental group is significantly higher than low-altitude group,...

This paper illustrates how traditional analysis and design tools can be successfully applied, with insights derived from recent research on control-structure interaction, to preliminary control system for a large space structure such as the Space Station Freedom. The regulates attitude during construction, normal on-orbit operation, reboost, docking using control-moment gyros thrusters. include finite-element modeling, model reduction based modal truncation, single-input/single-output Bode...

The rapid development of the economy has promoted growth freight transportation. truck service areas on expressways, as main places for drivers to rest, play an important role in ensuring driving safety trucks. If these are constructed densely or provide a plentiful supply parking areas, they costly construct. However, if distance between two adjacent is very large number spaces small, will fail meet needs drivers. In this situation, continuous working time be longer, and likely cause driver...

Young drivers are more likely to be involved in traffic accidents. The study aims explore mechanisms behind distracted driving behaviour, safety environment, responsibility, and hazard perception. A conceptual model is proposed based on Stimulus-Organism-Response (S-O-R) theory. self-reported data from 367 used estimate modify the exploratory factor analysis, structural equation modelling, bias-corrected bootstrap method. regression relationships mediators have been identified. environment...

Abstract The safety of equipment operation is important for the rail transits. lifetime and its improvement methods have become one key issues in maintenance Based on fuzzy comprehensive evaluation process result data, decision-making algorithm improving was discussed, including strategy recommendation based assessed data matching case reasoning. Taking actual onboard ATC Line 11 a city as an example, effectiveness two verified. study can support departments.

Auxiliary stopping area (ASA) is the necessary emergency facility for train safety of normal high-speed maglev. The study addresses ASA layout problem maglev operated bidirectionally on single track. First, an optimization model unidirectional double-track lines considering safety, operation efficiency, and construction cost established, two basic methods are investigated based distance demand characteristic ASAs. Then, bidirectional single-track analyzed, two-way coordination algorithm...

Urban rail transit is the backbone of public transport, which needs to maintain daily operation order as far possible. Due aging equipment, technological innovation, unequal supply, demand, etc., renovation projects have become a key link in life cycle management urban transit. Signal system affects safety and efficiency, it necessary avoid influence much Given potential risks signal systems not been fully discussed, combined with specific project "CBTC + TBTC", main related are identified,...

There are conflicts between the increasingly complex operational requirements and slow rate of system platform upgrading, especially in industry railway transit-signaling systems. We attempted to address this problem by establishing a model for migrating computing units data under resource-constrained conditions paper. By decomposing reallocating application functions, optimizing use CPU, memory, network bandwidth, hierarchical structure is proposed. The architecture divides into layers...

Metros are very popular in metropolises. Considering the undesirable interaction of different metro lines under emergency, a method for constructing network (MIN) is proposed. The Shanghai Metro networks (SMINs) including currently operation (SMINop) and its extension (SMINext) analyzed. results suggest that compared with SMINop, efficiency SMINext falls by 6.297%, but removing vertex has less impact on efficiency. performs better than SMINop attack-based tests, larger retention rates...

Abstract This article reports on a survey of customer and staff perceptions indoor air quality at two restaurants, billiard hall, casino. The was conducted each environment for 8 days: 2 weekend days consecutive weekends 4 weekdays. Before during the survey, hospitality satisfied ventilation requirements set in ASHRAE Standard 62–1999, Ventilation Acceptable Indoor Air. An objective this study to test hypothesis: If satisfies requirements, then is acceptable, that is, fewer than 20% exposed...

As the key part of metro trains, on-board automatic train control (ATC) systems play functions operation preventing speeding. Aiming at problem lifetime status evaluation in life cycle management ATC equipment, an indicator system influencing factors and model were established, a cloud model-based method for equipment was proposed. Combined with practical case line Shanghai, applicability verified, targeted maintenance suggestions given. It is expected to provide reference ideas methods rail...

In the operation of urban rail transits, train delays occur frequently, and emergency management is one key factors to ensure service quality. For speed limit scenarios with high demand, this paper takes running in restricted manual (RM) mode zone as an example discusses a coping method by jointing rescheduling passenger flow control. With goal maximizing number passengers served minimizing total delay, nonlinear optimization model constructed taking operation-related requirements...

Urban rail transit (URT) is popular in many big cities because of its advantage traffic performance. Affected by the whole life cycle, URT lines often involve renovation projects. In view increasing needs for signal systems, this paper studies system and interface, analyzes general process renovation, then discusses careful planning, safety supervision related ancillary works installation debugging renovation. Installation are key link a The content has guiding significance concrete...

The cross-line operation mode, based on interoperability technology, is becoming increasingly common in urban rail transits (URTs). Compared to trains running a single line, can greatly facilitate transfer passengers. Taking the scenario of emergent large passenger flow as an example, this paper explores train rescheduling problem for serving passengers by adding backup train. To maximize number served train, nonlinear optimization model constructed taking into account parameters planned...

Intelligent shuttle bus scheduling is one of the main development trend urban public transportation in future. In operation and management, we usually make buses' plan stations according to traffic demand during morning evening peak periods. this paper, firstly, use intelligent system predict exact time next arrive at certain stations. Then, based on interests passengers, cost passengers are formulated as objective function model transport developed. Finally, a genetic-newton algorithm used...

As an important node for urban transportation system, a railway passenger hub station ties internal and external traffic as well passengers to travel. Therefore, it is necessary study the transfer connection system of transport public transport, aiming at improving efficiency transfers. This paper constructs capacity-matching model time-reliability model. Then, combined with Xi'an North Railway Station Metro Line 2, calculates different capacity matching degrees based on departure intervals...

Young drivers are a high-risk group for traffic accidents, and risky driving behaviors the main cause accidents. In order to analyze behavior characteristics of young drivers. A four-factor questionnaire (DBQ) analysis in study was obtained firstly based on 388 questionnaires, reliability analysis, validity analysis. Then divided into five categories, influencing factors different were analyzed by non-parametric test, with as basic point. The results show that, overall, differences between...

In the high-speed maglev transportation system, protection of train operations is provided by cooperation on-board operation system and ground system. The interface between region a logical interface, which implemented way wireless communication safety module. this paper, based on concepts, regulations, design protection, faults, errors failures are discussed, including redundancy loss critical components, physical channel failure caused data validity or check reject, etc. Based structure,...