242 citations · 349 across the 10 of their papers we have counts for
10 papers
Jam-absorption driving with data assimilation
Siyu Li, Ryosuke Nishi, Daichi Yanagisawa +1
This paper introduces a data assimilation (DA) framework based on the extended Kalman filter-cell transmission model, designed to assist jam-absorption driving (JAD) operation to a…
Influence of self-disassembly of bridges on collective flow characteristics of swarm robots in a single-lane and periodic system with a gap
Kotaro Ito, Ryosuke Nishi
Inspired by the living bridges formed by ants, swarm robots have been developed to self-assemble bridges to span gaps and self-disassemble them. Self-disassembly of bridges (SDB) m…
System-size dependence of a jam-absorption driving strategy to remove traffic jam caused by a sag under the presence of traffic instability
Ryosuke Nishi, Takashi Watanabe
Sag is a road section where a downhill changes into an uphill, and is a highway bottleneck. We consider a system in which all vehicles are connected, and run on a single-lane road…
Theoretical conditions for restricting secondary jams in jam-absorption driving scenarios
Ryosuke Nishi
There has been considerable interest in the active maneuvers made by a small number of vehicles to improve macroscopic traffic flows. Jam-absorption driving (JAD) is a single vehic…
Collective motion of oscillatory walkers
Takahiro Ezaki, Ryosuke Nishi, Daichi Yanagisawa +1
We study a system of interacting self-propelled particles whose walking velocity depends on the stage of the locomotion cycle. The model introduces a phase equation in the optimal…
Taming macroscopic jamming in transportation networks
Takahiro Ezaki, Ryosuke Nishi, Katsuhiro Nishinari
In transportation networks, a spontaneous jamming transition is often observed, e.g in urban road networks and airport networks. Because of this instability, flow distribution is s…
Dynamics of social balance under temporal interaction
Ryosuke Nishi, Naoki Masuda
Real social contacts are often intermittent such that a link between a pair of nodes in a social network is only temporarily used. Effects of such temporal networks on social dynam…
Group Chase and Escape with Conversion from Targets to Chasers
Ryosuke Nishi, Atsushi Kamimura, Katsuhiro Nishinari +1
We are studying the effect of converting caught targets into new chasers in the context of the recently proposed `group chase and escape' problem. Numerical simulations have shown…
Introduction of Frictional and Turning Function for Pedestrian Outflow with an Obstacle
Daichi Yanagisawa, Ayako Kimura, Akiyasu Tomoeda +4
In this paper, two important factors which affect the pedestrian outflow at a bottleneck significantly are studied in detail to analyze the effect of an obstacle set up in front of…
Achievement of Alternative Configurations of Vehicles on Multiple Lanes
Ryosuke Nishi, Hiroshi Miki, Akiyasu Tomoeda +1
Heavy traffic congestion daily occurs at merging sections on highway. For releasing this congestion, possibility of alternative configuration of vehicles on multiple-lane road is d…