- document
-
Li, Zirui (author), Gong, Jianwei (author), Zhang, Zheyu (author), Lu, Chao (author), Knoop, V.L. (author), Wang, M. (author)The deep understanding of the behaviors of traffic participants is essential to guarantee the safety of automated vehicles (AV) in mixed traffic with vulnerable road users (VRUs). Precise trajectory prediction of traffic participants can provide reasonable solution space for motion planning of AV. Early works mainly focused on handcrafting...journal article 2024
- document
-
Hao, R. (author), Gao, Sa (author), Wang, X. (author), Ma, Wanjing (author), van Arem, B. (author), Wang, M. (author)Increasing attention is being paid to intersection signal control with cooperative platoons. Assuming platoons being formed, such platoons cannot only improve the intersection capacity but also minimize the number of control units, especially when dedicated connected and automated vehicle (CAV) lanes are considered. However, the platoon...journal article 2024
- document
-
Zhao, Jing (author), Knoop, V.L. (author), Sun, Jian (author), Ma, Zian (author), Wang, M. (author)Path dispersion (the spatial distribution of vehicular paths) is an important feature of traffic flow inside intersections and differs from traffic flow running along traffic lanes at road segment, especially under conflicting movements. The path dispersion reflects the operational features of traffic flow and is related to driving behaviour,...journal article 2023
- document
-
Zhao, J. (author), Knoop, V.L. (author), Wang, M. (author)Microscopic traffic flow models enable predictions of traffic operations, which allows traffic engineers to assess the efficiency and safety effects of roadway designs. Modeling vehicle trajectories inside intersections is challenging because there is an infinite number of possible paths in a two-dimensional space, and drivers can...journal article 2023
- document
-
Yuan, Y. (author), Wang, X. (author), Calvert, S.C. (author), Happee, R. (author), Wang, M. (author)Current driver behaviour models (DBMs) are primarily designed for the general driver population under specific scenarios, such as car following or lane changing. Hence DBMs capturing individual behaviour under various scenarios are lacking. This paper presents a novel method to quantify individual perceived driving risk in the longitudinal...journal article 2023
- document
-
Chen, N. (author), van Arem, B. (author), Wang, M. (author)Connected Automated Vehicles (CAVs) have the potential to improve traffic operations when they cooperatively maneuver in merging sections. State-of-the-art approaches in cooperative merging either build on heuristics solutions or prohibit mainline CAVs to change lane on multilane highways. This paper proposes a hierarchical cooperative...journal article 2022
- document
-
Wang, X. (author), Alonso-Mora, J. (author), Wang, M. (author)Road traffic safety has attracted increasing research attention, in particular in the current transition from human-driven vehicles to autonomous vehicles. Surrogate measures of safety are widely used to assess traffic safety but they typically ignore motion uncertainties and are inflexible in dealing with two-dimensional motion. Meanwhile,...journal article 2022
- document
-
Hao, R. (author), Liu, M. (author), Ma, Wanjing (author), van Arem, B. (author), Wang, M. (author)Due to the manoeuvre complexity, models describing the platoon formation process on urban roads are lacking in the literature. Inspired by flocking behaviours in nature, we proposed a two-dimensional model to describe connected automated vehicle (CAV) group dynamics based on the potential theory, which is composed of the elastic potential...journal article 2022
- document
-
Zeng, Yikai (author), Wang, M. (author), Rajan, R.T. (author)Coordination for truck platooning refers to the active formation of a group of heavy-duty vehicles traveling at close spacing to reduce the overall truck operations costs. Conventionally, this coordination is achieved by optimizing various truck-related parameters, such as schedules, velocities, and routes, based on an objective function that...journal article 2022
- document
-
Li, Guoqiang (author), Gorges, Daniel (author), Wang, M. (author)In this paper a learning-based optimization method for online gear shift and velocity control is presented to reduce the fuel consumption and improve the driving comfort in a car-following process. The continuous traction force and the discrete gear shift are optimized jointly to improve both the powertrain operation and the longitudinal...journal article 2022
- document
-
Liu, M. (author), Zhao, J. (author), Hoogendoorn, S.P. (author), Wang, M. (author)A joint control approach that simultaneously optimizes traffic signals and trajectories of cooperative (automated) vehicle platooning at urban intersections is presented in this paper. In the proposed approach, the signal phase lengths and the accelerations of the controlled platoons are optimized to maximize comfort and minimize travel delay...journal article 2022
- document
-
He, X. (author), Stapel, J.C.J. (author), Wang, M. (author), Happee, R. (author)Perceived risk and trust are crucial for user acceptance of driving automation. In this study, we identify important predictors of perceived risk and trust in a driving simulator experiment and develop models through stepwise regression to predict event-based changes in perceived risk and trust. 25 participants were tasked to monitor SAE...journal article 2022
- document
-
Wang, X. (author), Li, Z. (author), Alonso-Mora, J. (author), Wang, M. (author)Real-time safety systems are crucial components of intelligent vehicles. This paper introduces a prediction-based collision risk assessment approach on highways. Given a point mass vehicle dynamics system, a stochastic forward reachable set considering two-dimensional motion with vehicle state probability distributions is firstly established. We...conference paper 2022
- document
-
Schang, Christelle (author), Crosbie, Nicolas D. (author), Nolan, Monica (author), Poon, Rachael (author), WANG, M. (author), Jex, Aaron (author), John, Nijoy (author), Baker, Louise (author), Langeveld, J.G. (author)The shedding of pathogens by infected humans enables the use of sewage monitoring to conduct wastewater-based epidemiology (WBE). Although most WBE studies use data from large sewage treatment plants, timely data from smaller catchments are needed for targeted public health action. Traditional sampling methods, like autosamplers or grab...journal article 2021
- document
-
Zhang, Y. (author), Wang, M. (author), Hu, Jia (author), Bekiaris-Liberis, Nikolaos (author)Constant spacing-based platooning systems cannot guarantee string stability if platoon members only use the preceding vehicle's information. To meet string stability specification, leader-predecessor-follower (LPF) platooning systems are proposed to incorporate the information of both the preceding vehicle and the platoon leader into the...journal article 2021
- document
-
Mullakkal-Babu, F.A. (author), Wang, M. (author), van Arem, B. (author), Shyrokau, B. (author), Happee, R. (author)Current lane-based microscopic traffic simulators combine car-following and lane changing logic to describe the (often discrete) lateral vehicle motion on multi-lane road segments. However, the simulated lateral trajectories are physically unplausible and inside-lane behavior such as lane-keeping and curve negotiation cannot be modelled. In this...journal article 2021
- document
-
Liu, M. (author), Zhao, J. (author), Hoogendoorn, S.P. (author), Wang, M. (author)An integrated approach for optimising traffic signals and cooperative vehicle trajectories at urban intersections is proposed. The upper layer determines the optimal signals using enumeration and the lower layer optimises trajectories under each feasible signal plan. In the lower layer, platoon accelerations are optimised considering comfort...journal article 2021
- document
-
Wang, M. (author), Ge, Daohan (author), Zhang, Liqiang (author), Herder, J.L. (author)Compliant micromechanisms (CMMs) acquire mobility from the deflection of elastic members and have been proven to be robust by millions of silicon MEMS devices. However, the limited deflection of silicon impedes the realization of more sophisticated CMMs, which often require larger deflections. Recently, some novel manufacturing processes have...review 2021
- document
-
Ladino, Andres (author), Wang, M. (author)Lane change maneuvers are main causes of traffic turbulence at highway bottlenecks. We propose a dynamic game framework to derive the system optimum strategy for a network of cooperative vehicles interacting at a merging bottleneck. Cooperative vehicles on the highway mainline seek for optimal strategies (i.e., whether and when to perform...book chapter 2021
- document
-
Lu, Chang (author), He, X. (author), van Lint, J.W.C. (author), Tu, Huizhao (author), Happee, R. (author), Wang, M. (author)Surrogate measures of safety (SMoS) play an important role in detecting traffic conflicts and in traffic safety assessment. However, the underlying assumptions of SMoS are different and a certain SMoS may be adequate/inadequate for different applications. A comprehensive approach to evaluate the validity and applicability of SMoS is lacking...journal article 2021