A5066424562- Transportation Planning and Optimization
- Railway Systems and Energy Efficiency
- Traffic Prediction and Management Techniques
- Railway Engineering and Dynamics
- Traffic control and management
- Transportation and Mobility Innovations
- Vehicle emissions and performance
- Urban Transport and Accessibility
- Urban and Freight Transport Logistics
- Maritime Ports and Logistics
- Reliability and Maintenance Optimization
- Risk and Safety Analysis
- Urban Transport Systems Analysis
- Evaluation and Optimization Models
- Complex Network Analysis Techniques
- Vehicle Routing Optimization Methods
- Traffic and Road Safety
- Human Mobility and Location-Based Analysis
- Advanced Manufacturing and Logistics Optimization
- Air Quality and Health Impacts
- Smart Parking Systems Research
- Evaluation Methods in Various Fields
- Power Systems and Technologies
- Transportation Safety and Impact Analysis
- Transport and Economic Policies
Beijing Jiaotong University
2014-2024
Shenzhen Technology University
2024
Beijing Urban Construction Design & Development Group (China)
2024
Ministry of Transport
2019-2021
Beihang University
2014
University of Nevada, Reno
2014
China Academy of Transportation Sciences
2011
Beijing University of Civil Engineering and Architecture
2011
Beijing Institute of Technology
2011
Tyre wear generates not only large pieces of microplastics but also airborne particle emissions, which have attracted considerable attention due to their adverse impacts on the environment, human health, and water system. However, study tyre is scarce in real-world driving conditions. In present study, left-front left-rear terms volume lost mm3 76 taxi cars was measured about every three months. This covered 22 months from September 2019 June 2021 included more than 500 measurements total....
Energy-efficient metro operation has received increasing attention because of the energy cost and environmental concerns. This paper developed an integrated optimization model on train control timetable to minimize net consumption. The extents motoring braking as well configurations such headway interstation runtime are optimized consumption with consideration utilizing regenerative energy. An improved is proposed reduce traction by allowing coasting downhill slopes much possible. Variations...
With the increasing energy consumption in Chinese mainline railways amid worldwide carbon emission concerns, need for energy-efficient locomotive operation becomes urgent. Locomotive is directly linked to speed limits imposed by train ahead through signaling. In China's railways, change frequently because of relatively short headways a highly congested network. Whenever limit changes, must be determined again quickly adapt new limit. As result, real-time optimization problem with...
Train stopping patterns and schedules play critical roles in the service design of metro lines with express/local mode. Previous studies on mode generally handle train independently, which cannot ensure overall optimality provision. In this paper, a mixed integer nonlinear programming model is developed to collaboratively adjust order minimize passenger travel time With two types services provided, overtaking allowed diverse set route choices also incorporated into proposed model....
With the increasing concerns on energy consumption and operating cost in metro systems, saving train operation attracts significant attentions. Previous studies have mainly focused optimal control of a single energy-efficient timetabling. The former does not consider synchronization motoring braking trains, which cannot ensure proper utilization regenerative lines without storage systems. latter includes scheduling operations to synchronize trains for better energy. However, overlapping time...
In this work, the particulate matter less than 10 μm (PM10) emissions from a medium-sized passenger vehicle's front brake wear were studied using finite element analysis (FEA) and experimental approaches. The world harmonised light-duty vehicle test procedure-brake (WLTP-B) cycle was chosen to simulate real-world driving. An electrical low-pressure impactor (ELPI+) used count particles on dynamometer sealed in chamber. addition, machine learning method, namely, extreme gradient boosting...
Abstract High reliability is the crucial requirement in railway operation and a power supply system one of key components electrified railways. The cost-effectiveness maintenance works also concern operators while time window on trackside often limited. Maintenance scheduling thus essential to uphold reduce cost. It however difficult formulate optimal schedule meet both cost for as whole because its functional complexity demanding conditions. models achieve are proposed this study....
To accommodate the structural changes in logistics, competitions along a maritime supply chain are more intensive than before. This paper adopts two-stage noncooperative game-theoretical approach to model horizontal and vertical interactions among liners ports. In first stage, Bertrand game is applied between two liners. When shipping line decides which port call, multinomial Logit applied. second Nash equilibrium derived by solving games. A numerical example provided as case study.
Energy consumption is an important part among railway operational costs. This paper explores the simulation problem on energy-efficient multi-train control under moving block system. The model for founded according to operation rules and habits. way calculate trainpsilas time interval system introduced. suits locomotives with discrete levels of uneven rail. It can clearly describe impact following train by other trains. Based strategy, new algorithm discussed about how determine modes...
In major metropolitan cities, metro and intercity rail services usually share stations or have in close proximity to facilitate smooth connections for passengers. A large number of passengers may arrive on platforms within a short period time upon the arrivals trains, while drop significantly afterward. This injected passenger demand is not coped well by timetable with commonly adopted regular train headway. Focusing lines connecting railways, this study puts forward model optimize headways...
Last train coordination aims to synchronize the arrival and departure times of last feeder trains connecting at transfer stations improve accessibility urban rail networks. This study focuses on between with considering heterogeneous walking time. Three mathematical models are developed timetable optimization. The first model fine-tunes under given bound dwell second one allow mutual transfers prolonged time maximize accessibility. A biobjective function is proposed seek trade-off maximal...
To design an efficient and economical timetable for a heavily congested urban rail corridor, scheduling model is proposed in this paper. The objective of the to find departure time trains at start terminal minimize system cost, which includes passenger waiting cost operating cost. evaluate performance timetable, simulation developed simulate detailed movements passengers with strict constraints station train capacities. It assumes that who arrive early will have more chances access board...