activity
20222026
most citedNon-existence of queues for system optimal departure patterns in tree networks

1 citations · 1 across the 2 of their papers we have counts for

collaborators

6 papers

math.OC2026

Flexible and Reliable Network Design for Emerging Transportation Services: Multi-stage Stochastic Programming Approach

Riki Kawase, Koki Satsukawa, Toru Seo

This paper proposes a general framework for flexible and reliable network design problems (FR-NDPs). The framework enables planners to change infrastructure investments in response…

math.OC2025

A bottleneck model with shared autonomous vehicles: Scale economies and price regulations

Koki Satsukawa, Yuki Takayama

This study examines how scale economies in the operation of shared autonomous vehicles (SAVs) affect the efficiency of a transportation system where SAVs coexist with normal vehicl…

math.OC2025

Queue Replacement Approach to Dynamic User Equilibrium Assignment with Route and Departure Time Choice

Takara Sakai, Takashi Akamatsu, Koki Satsukawa

This study develops a hybrid analytical and numerical approach for dynamic user equilibrium (DUE) assignment with simultaneous route and departure time choice (RDTC) for homogeneou…

math.OC2024

Stability analysis of a departure time choice problem with atomic vehicle models

Koki Satsukawa, Kentaro Wada, Takamasa Iryo

In this study, we analyse the global stability of the equilibrium in a departure time choice problem using a game-theoretic approach that deals with atomic users. We first formulat…

math.OC2023

A Paradox of Telecommuting and Staggered Work Hours in the Bottleneck Model

Takara Sakai, Takashi Akamatsu, Koki Satsukawa

We study the long- and short-term effects of telecommuting (TLC), staggered work hours (SWH), and their combined scheme on peak-period congestion and location patterns. In order to…

math.OC20221 cited

Non-existence of queues for system optimal departure patterns in tree networks

Takara Sakai, Koki Satsukawa, Takashi Akamatsu

This study proves the non-existence of queues for a dynamic system optimal (DSO) departure pattern in a directed rooted tree network with a single destination. First, considering q…