1 The traffic flow heterogeneity caused by the different car-following dynamics among the different types 2 of vehicles has drawn increasing attention recently. This paper explores the characteristics of the four 3 types of car-truck car-following combinations, car-following-car (CC), car-following-truck (CT), truck4 following-car (TC) and truck-following-truck (TT), and their impacts on traffi...

Freight trucks are an important component of the nation s highway traffic. Due to their physical and operational characteristics, they can significantly impact traffic system performance, safety, and the travel experience of non-truck drivers. Methodological gaps exist in the literature on modeling car–truck interactions that do not result in crashes, especially those resulting from non-truck d...

Car-following (CF) behavior is one of the most important driving behaviors. Accurately understanding and modeling CF essential for traffic flow simulation user-acceptable advanced assistance systems (ADASs). In previous decades, models were calibrated based on drivers or trajectories, with short-term changes ignored. Recent studies have indicated that these could be caused by occasional irritat...

1 Heterogeneity is an essential characteristic in car-following behaviors, which can be defined 2 as the differences between the car following behaviors of driver/vehicle combination under 3 comparable conditions. This paper proposes a Visual Imaging Model (VIM) with relaxed 4 assumption on a driver’s perfect perception for 3-D traffic information and uniform reaction 5 to vehicles with differe...

Modeling and simulation of traac has a long tradition. A vast number of diierent approaches have been used to simulate traac, each of which has been calibrated and validated separately. This work aims at the way diierent models are interrelated. It is shown how one can, starting from very general modeling assumptions , construct a family of car following models that contains models closely rela...

In this paper, to explore the influence of expected speed on traffic flow in helical ramps, a new car-following model for intelligent connected vehicles (ICVs) was established mainly considering provided vehicle-to-everything (V2X) environment. On basis, sufficient conditions ensure stability stream were met and congestion propagation mechanism discussed by using linear analysis nonlinear analy...