Microscopic analysis of traffic behavior at unsignalized intersections in developing world

Game-Theoretic Modeling of Multi-Vehicle Interactions at Uncontrolled Intersections

“…And as a result, if there is an overall leader, i.e., the leader in every pairwise leader-follower relationship related to itself, it can take comparatively most aggressive actions than all other players, e.g., to go first. The effectiveness of decision-making model (7) in resolving traffic conflicts at uncontrolled intersections, i.e., driving every vehicle safely through the intersection without causing collisions or deadlocks, is illustrated through multiple simulation case studies in Section VII. Furthermore, decision-making model ( 7) decouples the n-player interactions into pairwise interactions, and thus significantly decreases the computational complexity in solving for solutions.…”

“…Our leader-follower game based strategy allows a follower to enter the intersection even when a leader is still in the intersection, for instance, in situations where the follower's action choices have minor conflicts with the leader's action choices. Whether or not the follower's action choices have conflicts with the leader's action choices and how these conflicts influence their interactive decision-making are represented and automatically handled by the decision-making process (7).…”

“…ρ ex ) denote the value of ρ corresponding to the point on P with coordinates (x(ρ en ), y(ρ en )) (resp. (x(ρ ex ), y(ρ ex ))) 7 , i.e., the vehicle enters (resp. exits) the intersection when its traveled distance along the path is ρ en (resp.…”

“…By types of traffic control, intersections can be classified as signal-controlled, "stop" or "yield" sign-controlled, and uncontrolled [4]. Uncontrolled intersections are intersections without traffic signals or signs, and are common in both urban and rural settings over the world [5]- [7]. According to the U.S. National Highway Traffic Safety Administration's fatality analysis report, more than one fourth of fatal crashes in the U.S. occur at or are related to intersections, and about 50% of these occur at uncontrolled intersections [8].…”

Trajectory analysis at mid-block section using microscopic simulation

“…Simulation is the manipulation of a model in such a manner that it acts on time or space in order to compress it, allowing one to see interactions that would otherwise be invisible due to their separation in time or space. The traffic simulation models span from microscopic to macroscopic models that employ general traffic descriptors such as flow and have applied the phrase nanoscopic model to signify finer depiction of traffic, depending on the desired requirement [10,11].…”