activity
20192025
most citedGlobal stability of day-to-day dynamics for schedule-based Markovian transit assignment with boarding queues

3 citations · 9 across the 6 of their papers we have counts for

collaborators

7 papers

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.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.OC2023★ 3 cited

Global stability of day-to-day dynamics for schedule-based Markovian transit assignment with boarding queues

Takashi Akamatsu, Koki Satsukawa, Yuki Oyama

Schedule-based transit assignment describes congestion in public transport services by modeling the interactions of passenger behavior in a time-space network built directly on a t…

math.OC2022

Queue replacement principle for corridor problems with heterogeneous commuters

Takara Sakai, Takashi Akamatsu, Koki Satsukawa

This study investigates the theoretical properties of a departure time choice problem considering commuters' heterogeneity with respect to the value of schedule delay in corridor n…

econ.GN2022★ 3 cited

Origin of power laws and their spatial fractal structure for city-size distributions

Tomoya Mori, Takashi Akamatsu, Yuki Takayama +1

City-size distributions follow an approximate power law in various countries despite high volatility in relative city sizes over time. Our empirical evidence for the United States…

math.OC2022★ 1 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…

econ.GN2019★ 2 cited

Spatial scale of agglomeration and dispersion: Number, spacing, and the spatial extent of cities

Takashi Akamatsu, Tomoya Mori, Minoru Osawa +1

How does transport cost affect the spatial organization of economic activities? This study develops a theoretical framework that distinguishes between two types of dispersion force…