Yusuke Hara's research while affiliated with Tohoku University and other places

Publications (11)

Article
Full-text available
The e-commerce market has grown rapidly in the past two decades. The need for predicting e-commerce demand and evaluating relevant policies and solutions is increasing. However, the existing simulation models for e-commerce demand are still limited and do not consider the impacts of delivery options and their attributes that shoppers face on multip...
Article
Calibration is an essential process in making an agent-based simulator operational. In particular, the calibration for freight demand is challenging because of the model complexity and the shortage of available freight demand data compared with passenger data. This paper proposes a novel calibration method that relies solely on screenline counts, n...
Article
This study establishes Markovian traffic equilibrium assignment based on the network generalized extreme value (NGEV) model, which we call NGEV equilibrium assignment. The use of the NGEV model for route choice modeling has recently been proposed, and it enables capturing the path correlation without explicit path enumeration. However, the theoreti...
Article
Full-text available
Time-sensitive parcel deliveries—shipments requested for delivery in a day or less—are an increasingly important aspect of urban logistics. It is challenging to deal with these deliveries from a carrier perspective. These require additional planning constraints, preventing the efficient consolidation of deliveries that is possible when demand is we...
Preprint
Full-text available
Calibration is an essential process to make an agent-based simulator operational. Especially, the calibration for freight demand is challenging due to the model complexity and the shortage of available freight demand data compared with passenger data. This paper proposes a novel calibration method that relies solely on screenline counts, named Scre...
Article
Advances in urban freight modeling and the availability of freight vehicle operations data have enabled the use of disaggregate models to evaluate urban delivery policies and solutions. This research assesses different model specifications for urban freight simulation and their influence on flow reproducibility, with a focus on trip- and tour-based...
Article
Full-text available
In the early stages of the COVID-19 pandemic, the Japan government could not impose strong restrictions such as lockdowns. Since there has been no such nation-wide behavioral analysis, we calculated indicators of nation-wide behavioral change using data based on mobile phone network.This study shows empirical facts and findings on behavioral change...
Preprint
Full-text available
The e-commerce delivery demand has grown rapidly in the past two decades and such trend has accelerated tremendously due to the ongoing coronavirus pandemic. Given the situation, the need for predicting e-commerce delivery demand and evaluating relevant logistics solutions is increasing. However, the existing simulation models for e-commerce delive...
Preprint
Time-sensitive parcel deliveries, shipments requested for delivery in a day or less, are an increasingly important research subject. It is challenging to deal with these deliveries from a carrier perspective since it entails additional planning constraints, preventing an efficient consolidation of deliveries which is possible when demand is well kn...
Preprint
This study establishes a novel framework of Markovian traffic equilibrium assignment based on the network generalized extreme value (NGEV) model, which we call NGEV equilibrium assignment. The use of the NGEV model in traffic assignment has recently been proposed and enables capturing the path correlation without explicit path enumeration. However,...
Article
Full-text available
Urban freight transport is primarily fulfilled by commercial road vehicles. Within cities, overnight parking is a critical element influencing commercial vehicle operations, particularly for heavy vehicles with limited parking options. Providing adequate overnight parking spaces for commercial vehicles tends to be a challenge for urban planners. In...

Citations

... Note that, depending on the state definition, a RL model can be either node-based or link-based. A node-based RL model provides a simpler description of route choice behavior with efficient computation and is often implemented in traffic assignment models (e.g., Akamatsu, 1996;Oyama et al., 2022). In contrast, a link-based model describes a transition between two links, i.e. the geometric relationships of three nodes, and may capture more flexible mechanisms of behavior. ...
... Developed MCCs in the delivery zone enable the application of ecovehicles and crowdsourcing in the last delivery phase. Cargo-hitching, as a CL concept, is covered in [43,44]. ...
... Local governments' responses are significant in the general prevention of COVID-19 since the situation is unique in different locations [10,11]. Several studies of mobility change during the first national state of emergency showed Japan had successfully reduced the population density in urban areas without forcing lockdowns [12][13][14]. There was a significant infection decrease in the third to fifth waves in Nagasaki Prefecture, about 2-3 weeks after a state of emergency was declared (Fig. 1b). ...
... Only public parking lots analyzed, lack of results presented [28] location, occupancy Overnight parking choice model based on traffic analysis zones (TAZs) Problem analyzed on a micro scale [29] slots, security, space Evaluation of variants using the TOPSIS method Lack of parameters, lack of data ( )-number of analyzed parking lots. ...