Hai-Jun Huang

Hai-Jun Huang
Beihang University (BUAA) | BUAA · Department of Behavior and Operations Management

PhD

About

341
Publications
68,740
Reads
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9,735
Citations
Additional affiliations
December 2019 - present
Beihang University (BUAA)
Position
  • Professor (Full)
December 2018 - present
Beihang University (BUAA)
Position
  • Professor (Full)
November 2018 - present
Beihang University (BUAA)
Position
  • Professor (Full)

Publications

Publications (341)
Article
This paper investigates the effects of intercity commuting on travel characteristics and urban performances. A spatial equilibrium model of the two-city system which involves the travel mode choice and workplace selection equilibrium, as well as the housing demand and supply equilibrium, is proposed and well formulated. A two-level iterative proced...
Article
We propose a dynamical system model to formulate the day-to-day dynamics of both traveler mode choice and ride-sourcing car supply in a duopoly ride-sourcing market. In the transport system, besides usual transport modes, e.g., private car and public transit, there are two platforms to provide ride-sourcing services, and travelers choose travel mod...
Article
This paper constructs a dynamic model for a periphery-downtown urban network combining Vickrey's theory with Macroscopic Fundamental Diagram (MFD) to capture interactions between the peripheral traffic and the downtown, and to examine how travelers on different corridors compete for the downtown road resources in the context of dynamic user equilib...
Article
Motivated by Uber's and DiDi's differentiated services providing, in this paper we propose an analytical model to investigate the operating strategies of an on-demand ride service system for coordinating express and limousine services. It is found that the customer preference for express over limousine plays an important role in the model solutions...
Article
Energy waste inside the powertrain of electric vehicles (EVs) due to non-optimized acceleration caused by the improper powertrain control variables is not generally considered when designing EVs' optimal driving strategies. To fill this gap, this study designs an optimal EV driving strategy taking a holistic approach by explicitly considering the p...
Article
Full-text available
This paper proposes two tradable parking permit schemes for managing the morning commute with three alternative modes, i.e., transit, driving alone and carpool, under the parking space constraint at destination. The commuting equilibrium and system-optimal distributions of parking permits are further investigated in a many-to-one multi-modal networ...
Article
This paper extends the work of Zhang et al. (2008) to investigate the daily commuting patterns allowing both late arrival in the morning and early departure in the evening in a linear city. Given the fixed parking locations of morning commuters, the Nash equilibrium principle is employed to formulate commuters’ departure time choice in the evening...
Article
We present a core-periphery-like multicentric urban spatial equilibrium model to explore the endogenous relationships among traffic congestion, urban population, and job decentralization, and investigate the urban optimization problem with fiscal considerations by optimizing the number of employment subcenters. The solution properties of this model...
Article
Many governments around the world are striving to promote the development of EVs for EV’s sustainability and efficiency. However, EVs may induce extra traffic congestion in the morning commute. To illustrate this point, we incorporate the vehicle's energy consumption (EC) into the classical morning commute model to explore the EV's influence on the...
Article
This paper extends the existing bottleneck model with ridesharing by considering commuters' parking competition. Each driver prefers to park closer and walk shorter to the workplace. We present a new equilibrium model by involving ridesharing and parking behaviour. The equilibrium solution implies that the parking density and parking price can sign...
Article
The virus 2019-nCoV rapidly crossed the globe in the first quarter of 2020, and the global civil aviation industry contributed to the spread of the virus. The aircraft deplaning process is one of the critical stages of the spread of infectious diseases and merits careful research accordingly. However, little effort has been made to tailor the civil...
Article
We analyze the commuting patterns and parking modes for integrated daily commuting under different regimes. Based on a bi-direction bottleneck network with a spatial pattern of parking, the daily commuting patterns with parking location choices are analyzed. Without road toll and parking fee, there exist two equilibrium flow patterns and one parkin...
Article
This paper examines the morning commuting flow patterns in a many-to-one public transit line. Multi-class commuters with different degrees of sensitivity towards crowding are considered. At user equilibrium, trains arriving at the destination at approximately the work start time are found to be either more or less congested at the intermediate stat...
Article
This paper studies the impact of route choice set of networks on the day-to-day traffic dynamics through conducting a group of experiments, in which four traffic networks with different sets for choice are used. It is observed that a deterministic user equilibrium (DUE) state is difficult to sustain and the probability of reaching DUE is larger in...
Article
The bottleneck model introduced by Vickrey in 1969 has been recognized as a benchmark representation of the peak-period traffic congestion due to its ability to capture the essence of congestion dynamics in a simple and tractable way. This paper aims to provide a 50th anniversary review of the bottleneck model research since its inception. A biblio...
Article
Full-text available
Boundedly rational dynamic activity-travel assignment (BR-DATA) endogenously integrates activity-travel scheduling and dynamic traffic assignment to determine the interaction between land use transport supplies and activity-travel demands of boundedly rational travelers. The combinatorial explosion of activity-travel patterns (ATPs) involving multi...
Article
Full-text available
In this study, we conducted a series of experiments to investigate child behavior during self-evacuation and guided evacuation under non-emergency and emergency situations. The properties of child flow dynamics are obtained through analysis of the experimental video recordings. It is found that under a non-emergency situation, the evacuation proces...
Article
Metropolises in emerging markets are facing serious urban transport challenges. Understanding people’s travel preferences is crucial for designing effective sustainable urban policies. Little attention has been paid to studying travel preferences in multimodal transport systems in these markets. This study estimates the travel preferences in the me...
Article
High-occupancy vehicle (HOV) lane has been designed to maximize the movement of people rather than vehicles. For completely understanding the travel pattern of a multilane highway system, this paper presents a dynamic user equilibrium framework, in which commuters, composed of solo-driving drivers, ridesharing drivers and ridesharing passengers, ch...
Article
In this study, we examine a class of first–best congestion pricing schemes that employ various strategies to differentiate price spatially. Since spatial price differentiation raises the issue of privacy infringement, two hybrid pricing schemes are proposed to internalize travelers’ privacy cost. Under these schemes, a traveler is given the options...
Article
With the development of wireless charging technology, charging-while-driving now becomes possible. In this paper we propose a model to optimize the location of the wireless charging lanes (WCL) by taking into account their effects on road capacity and traveler’s route choice. The model is formulated as a nonlinear programming problem and solved by...
Article
Full-text available
We propose a dynamic tradable credit scheme for control of the day-to-day evolution process of traffic flows towards the system optimum (SO) state in a traffic network with elastic demand. In the scheme, the distribution and charge of travel credits are adjusted from period to period. The interacting dynamics among day-to-day traffic flows, period-...
Article
Public transport is the key component in sustainable transportation. In China, large subsidies are provided by the national and local governments to encourage the use of public transport systems. However, high commuting demand leads to such incredible phenomenon that passengers have to climb windows for riding in buses during peak hours. Thus, a ca...
Article
With the rapid development of economy and society, the urbanization process is speeding up in China. Thereupon, several large-size urban agglomerations (or city groups) have emerged. In the present China, a typical city group consists of more than three cities, which are 50–250 km apart from each other, closedly connected in social and economic act...
Article
In this paper, we first propose an instance-based learning theory (IBLT) model with social learning to study the day-to-day route choice behavior in a two-route network. We then define four indexes (i.e., efficiency, stability, cooperation, and equity) to investigate the effects of social learning on each traffic participant’s route choice behavior...
Article
In this paper, a generalized car-following model is proposed to investigate the trip cost of each commuter in a traffic corridor with one entry and one exit at equilibrium state. Trip cost consists of the travel time cost and the penalty cost of arriving at destination early or late. At equilibrium, all commuters experience identical trip cost rega...
Article
In this paper, we propose an intuitive, non-anticipative, partially decentralized, and adaptive combined strategy for managing evacuation routes with limited inputs so as to minimize the system clearance time. This strategy is intuitive due to the use of simple and transparent rules, non-anticipative because it relies on readily available informati...
Article
This study proposes a new framework for studying activity-travel dynamics in multi-state supernetworks based on a needs-based theory. The framework postulates that temporal fluctuations in human needs are the source of dynamically generated activities, which in turn are manifested in the choice of day-to-day activity-travel patterns (ATPs) and dyna...
Article
Full-text available
In light of the increasing demand for passenger transportation on high-speed railway (HSR), the pedestrian flow at HSR stations has become quite crowded in many countries, which has attracted researchers to study the HSR boarding behavior. In this paper, we propose three boarding strategies based on the features of the boarding behavior at an origi...
Article
Full-text available
This study proposes a new framework for studying activity-travel dynamics in multi-state supernetworks based on a needs-based theory. The framework postulates that temporal fluctuations in human needs are the source of dynamically generated activities, which in turn are manifested in the choice of day-to-day activity-travel patterns (ATPs) and dyna...
Article
Child behavior during evacuation, as a critical problem that has not been fully explored and understood, is investigated in this paper, through conducting a group of experiments and developing a cellular automaton (CA) model. The video recordings have revealed several typical patterns of child behavior related to distance, obstacle and congestion l...
Article
In this paper, we utilize route flow to propose a network traffic flow model with consideration of interruption factors. The proposed model is then used to study the effects of two typical interruption factors (e.g., bus station and accident) and the divergence effect at the shared node on each link's traffic flow. The model is conducted under the...
Article
A reasonable boarding model can effectively improve the boarding efficiency. Therefore, developing boarding models/strategies to improve the boarding efficiency has been an interesting topic in the air transportation. In this paper, we incorporate the group behavior and the quantity of luggage into the boarding process, and then develop an extended...
Article
The objective of this paper is to provide new insights into commuters’ mode choice behavior in a monocentric closed city with endogenous population distribution, where a congested highway and a crowded railway provide commuting services for residents on a linear urban corridor. We first explore the typical equilibrium mode-choice patterns with exog...
Article
Travelers can use the information to help them make decision reasonably. In this paper, bottleneck model is used to study the effect of information on travelers’ departure time choice. We use Bayesian learning mechanism to simulate travelers’ daily decision-making behavior. Four typical cases of travelers are considered: all the information, only i...
Article
Collision avoidance behavior has become an open challenging problem since it is one of critical factors that influence the pedestrian flow dynamics. In this paper, a cellular automaton (CA) model is developed to depict the pedestrian movements when collision avoidance behaviors exist during evacuation. Then, we utilize the proposed model to simulat...
Article
The flow congestion model provides a realistic form of depicting congestion by considering the spatial dynamic characteristics of traffic flow. For reducing the complication of analysis, previous studies adopted the α − β − γ preference of travel time, arrival early and late penalties. This handling method destroys the continuity of user equilibriu...
Article
In this paper, we propose a method to compare different energy consumption models and design a strategy to study the quantitative effects of wireless charging lane (WCL) on each electric vehicle's (EV's) link travel time. We utilize the modified energy consumption model and strategy to explore electric vehicle's electricity consumption and link tra...
Article
The dynamic traffic equilibrium problem has been a pivotal area of research in transportation for a few decades. The current state-of-the-art research in this area generally considers simultaneous departure time and route choice. In this paper, we theoretically prove that, in the simplest standard bottleneck model with a sufficient number of commut...
Article
Free-floating car-sharing (FFC) has recently received increasing attention due to the flexibility in mobility services. Existing studies related to FFC mainly focus on the analysis of operational management and user preferences. Efforts to model the dynamic choices of free-floating shared cars (SCs) in individuals’ daily multi-modal multi-activity...
Article
Reasonable charging station positions are critical to prompt the widespread use of electric vehicles (EVs). This paper proposes a bi-level programming model with the consideration of EV's driving range, for finding the optimal locations of charging stations. In this model, the upper level is to optimize the position of charging stations so as to ma...
Article
Full-text available
We extend the proportional swap system by Smith (1984a) and the network tatonnement process by Friesz et al. (1994) to formulate the day-to-day evolution of departure time choice under bounded rationality in the bottleneck model. It is shown that the stationary points of the doubly dynamical systems exist and are equivalent to the boundedly rationa...
Article
Full-text available
We study urban structure and traffic congestion of a monocentric city by idealizing its suburb and its core as two zones and then exploring what would happen when they are connected by a congestible highway and a crowded railway system. We introduce dynamic congestion effect into commuters’ departure-time and mode choice behaviours, and analyse the...
Article
Electric vehicle (EV) has become a potential traffic tool, which has attracted researchers to explore various traffic phenomena caused by EV (e.g. congestion, electricity consumption, etc.). In this paper, we study the energy consumption (including the fuel consumption and the electricity consumption) and emissions of heterogeneous traffic flow (th...
Article
We extend the proportional swap system by Smith (1984a) and the network tatonnement process by Friesz et al. (1994) to formulate the day-to-day evolution of departure time choice under bounded rationality in the bottleneck model. It is shown that the stationary points of the doubly dynamical systems exist and are equivalent to the boundedly rationa...
Article
Full-text available
We study urban structure and traffic congestion of a monocentric city by idealizing its suburb and its core as two zones and then exploring what would happen when they are connected by a congestible highway and a crowded railway system. We introduce dynamic congestion effect into commuters’ departure-time and mode choice behaviours, and analyse the...
Article
In this paper, a car-following model is proposed to study each EV’s (electric vehicle) motion behavior near the WCL (wireless charging lane) and a lane-changing rule is designed to describe the EV’s lane-changing behavior. Then, the car-following model and lane-changing rule are used to explore each EV’s micro driving behavior in a two-lane system...
Article
The purpose of this paper is to extend the work of DePalma and Arnott (2012) by investigating the solutions for social optimum (SO) and user equilibrium (UE) assignment in a single-entry traffic corridor with consideration of both early and late arrivals. The LWR model and the Greenshields’ relation are used to describe the dynamic properties of tr...
Article
The purpose of this paper is to extend the work of DePalma and Arnott (2012) by investigating the solutions for social optimum (SO) and user equilibrium (UE) assignment in a single-entry traffic corridor with consideration of both early and late arrivals. The LWR model and the Greenshields' relation are used to describe the dynamic properties of tr...
Article
In this paper, we investigate the effects of staggered shifts on the user equilibrium (UE) state in a single-entry traffic corridor with no late arrivals from the analytical and numerical perspective. The LWR (Lighthill–Whitham–Richards) model and the Greenshields’ velocity–density function are used to describe the dynamic properties of traffic flo...
Article
In this paper, we propose a macro traffic flow model to explore the effects of the driver’s bounded rationality on the evolutions of traffic waves (which include shock and rarefaction waves) and small perturbation, and on the fuel consumption and emissions (that include CO, HC and NO ) during the evolution process. The numerical results illustrate...
Article
This paper investigates the traffic flow dynamics under the social optimum (SO) principle in a single-entry traffic corridor with staggered shifts from the analytical and numerical perspectives. The LWR (Lighthill-Whitham and Richards) model and the Greenshield’s velocity-density function are utilized to describe the dynamic properties of traffic f...
Article
In this paper, a regret theory-based stochastic user equilibrium model of route choice is proposed by introducing a regret aversion parameter to reflect the regret degree of travelers. Route choice is governed by a logit formula in which the disutility of a route is codetermined by its performance and the anticipated regret experienced by comparing...
Article
Through relaxing the behavior assumption adopted in Smith's model (Smith, 1984), we propose a discrete dynamical system to formulate the day-to-day evolution process of traffic flows from a non-equilibrium state to an equilibrium state. Depending on certain preconditions, the equilibrium state can be equivalent to a Wardrop user equilibrium (UE), L...
Article
In this paper, we apply the relationships between the macro and micro variables of traffic flow to develop an electricity consumption model for electric vehicular flow. We use the proposed model to study the quantitative relationships between the electricity consumption/total power and speed/density under uniform flow, and the electricity consumpti...
Article
Morning commuters choose their departure times and travel modes based on a combinational evaluation of factors associated with the chances of running into bottleneck congestion, likely schedule delays, parking space availability as well as monetary costs of traveling and parking. This study investigates a morning commute problem with carpooling beh...
Conference Paper
The assumption of route choice behavior plays an essential role in various traffic assignment models. Regret theory (RT) that assumes travelers being regret averse, might be more reasonable and realistic than the traditional utility maximization theory. Using RT, we develop a new combined trip distribution and traffic assignment model in this paper...
Article
Full-text available
A unified framework coupling activity-based modelling and dynamic traffic assignment has recently been proposed. It formulates dynamic activity-travel assignment (DATA) in multi-state supernetworks as a dynamic user-equilibrium. Choices of departure time, route, mode, activity sequence, and activity/parking location are determined endogenously, ref...
Article
Full-text available
It is important to develop newly theoretical and practical approaches of studying various travel behaviors. The majority of route choice models assume that travelers are completely rational and always choose paths with the maximum expected utility or the minimum expected cost, which comes into conflict with bounded rational behavior in reality. Ran...
Article
Data envelopment analysis (DEA) is an effective non-parametric method for measuring the relative efficiencies of decision making units (DMUs) with multiple inputs and outputs. In many real situations, the internal structure of DMUs is a two-stage network process with shared inputs used in both stages and common outputs produced by the both stages....
Article
Dynamic user optimal simultaneous route and departure time choice (DUO-SRDTC) problems are usually formulated as variational inequality (VI) problems whose solution algorithms generally require continuous and monotone route travel cost functions to guarantee convergence. However, the monotonicity of the route travel cost functions cannot be ensured...
Article
Full-text available
This article proposes a tradable credit scheme for managing commuters travel choices. The scheme considers bottleneck congestion and modal split in a competitive highway-transit network with heterogeneous commuters who are distinguished by their valuation of travel time. The scheme charges all auto travelers who pass the bottleneck during a peak-ti...
Article
Full-text available
This paper examines how capacity and toll choices of the Build–Operate–Transfer mode affect the benefit distribution among private sector, road users and public under the framework of cumulative prospect theory. In the proposed network equilibrium model, we divide all road users into several classes differentiated by their valuation of travel time,...
Article
Commuters can complete their “home-work-home” trips by three options: subway-only mode, auto-only mode, and park-and-ride mode on a bottleneck-constrained corridor. The purpose of this paper is to enhance the insights into pricing mechanism for subway and parking and corresponding mode choice behavior on the corridor with elastic demand. A nested l...
Article
Full-text available
Considering user heterogeneity with different values of time (VOTs), traffic equilibrium models are presented to investigate commutes' travel behavior in a bi-modal transportation system with a mass transit parallel to a toll road. The VOTs of individuals are assumed to follow the continuous uniform distribution, and two types of transit fare are d...
Conference Paper
A modified floor field model is proposed to simulate the pedestrian evacuation behavior in a room with multiple exits by considering a remainder direction visual field. A remainder direction visual field is used to describe the pedestrian’s prediction on the propagation of pedestrian flow with a direction visual field. The prediction not only relie...
Conference Paper
Full-text available
This paper investigates the morning commuter problem in a competitive highway/transit network with stochastic capacity which follows uniform distribution. It is assumed that both the commuters’ departure time choice and modes choice follow the user equilibrium (UE) principle in terms of the mean travel cost. Taking account of the effect of the stoc...