Formulation and solution approach for calibrating activity-based travel demand model-system via microsimulation

Chen, Siyu; Prakash, A. Arun; Azevedo, Carlos Lima de; Ben‐Akiva, Moshe

doi:10.1016/j.trc.2020.102650

Cited by 11 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To keep consistency, the calibration parameters are denoted as θ ¼ ðθ h h 2 HÞ, with which the superscripts 0, L, and U refer to a priori value, the lower bounds, and the upper bounds, respectively. The demand calibration problem can be formulated as the following optimization problem (Osorio, 2019;Chen et al, 2020).…”

Section: Br-ata Od Demand Calibration Problemmentioning

confidence: 99%

“…One common technique for solving calibration problems is minimizing the distance, such as sum-of-squares distance, Manhattan distance, and Euclidean distance (Chen et al, 2020;Yang et al, 2001), between the estimated values and observed values. The least squares method (LSM) and its variants (Chiu et al, 2010;Shafiei et al, 2018;Chen et al, 2020) are widely used. The implicit network loading or ATP choice makes the constraints in the calibration problems nonlinear and the ATA models intractable.…”

Section: Spsa Algorithm For Calibrating Br-atamentioning

confidence: 99%

“…Siripirote et al (2015) and Fu et al (2015) adopted a maximum likelihood estimation method to calibrate parameters in ABMs. Applying micro-simulations, Fl€ otter€ od et al ( 2012) calibrated a scheduling method of probabilistic ATP perturbation in the MATSim framework, and Chen et al (2020) calibrated a nested logit model with DynaMIT. It should be noted that these two studies combine ABM and DTA exogenously.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Formulation and solution for calibrating boundedly rational activity-travel assignment: An exploratory study

Wang¹,

Liao²

2023

Communications in Transportation Research

View full text Add to dashboard Cite

Section: Br-ata Od Demand Calibration Problemmentioning

confidence: 99%

Section: Spsa Algorithm For Calibrating Br-atamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Formulation and solution for calibrating boundedly rational activity-travel assignment: An exploratory study

Wang¹,

Liao²

2023

Communications in Transportation Research

View full text Add to dashboard Cite

“…Calibration and validation are key aspects that must be addressed for these models to be reliable and widely applied, especially for the activity-based models. However, few studies have investigated the development and application of robust techniques for calibrating the demand-side parameters of activity-based models (Chen et al 2020).…”

Section: Activity-based Modelingmentioning

confidence: 99%

Reducing pollutant emissions from vessel maneuvering in port areas

Chang

2022

Marit Econ Logist

View full text Add to dashboard Cite

We propose an activity-based model to calculate ships' exhaust emissions while maneuvering in port. The exhaust emissions from the seven international commercial ports in Taiwan (namely Kaohsiung, Keelung, Taichung, Taipei, Hualien, Anping, and Suao) were calculated using actual data. Then, the regional ship exhaust emissions were estimated based on the number and size of ships and the type of fuel they used. Our method of predicting and evaluating the effectiveness of green port policies is shown to be intuitive and precise. Small vessels, which are the most common vessel type to enter and leave Taiwan ports, were shown to generate most of the emissions, but unit emissions from large vessels were the highest among three types of vessels (i.e., small, medium, and large). Moreover, greenhouse gas (GHG) emissions corresponded to sailing speed. Taiwan International Ports Co., Ltd (TIPC) has slightly reduced carbon dioxide equivalent and sulfur oxide emissions by implementing a green port policy, consisting of multiple ways of building a sustainable port environment (such as vessel speed reduction and use of low-sulfur oil). However, nitrogen oxide emissions have not decreased significantly. Our findings indicate that lower speeds and onshore power supply can reduce local air pollution, and assist transportation authorities, who should consistently monitor GHG emissions in port, to proactively respond to the International Maritime Organization's regulations for ensuring a sustainable future.

show abstract

“…In calibrating the ABM for the prototype cities, we adjust the following quantities to match the mode and activity shares for their respective typologies: alternative-specific constants, specific variable coefficients and scale parameters (which control the correlations in the nested logit structure). The calibration approach is formally described in Chen et al (2019). The activity validation data are obtained from available travel surveys for cities in the respective typologies (see Table 5).…”

Section: Demandmentioning

confidence: 99%

Evaluating the systemic effects of automated mobility-on-demand services via large-scale agent-based simulation of auto-dependent prototype cities

Oke

Akkinepally

Chen

et al. 2020

Transportation Research Part A: Policy and Practice

View full text Add to dashboard Cite

Formulation and solution approach for calibrating activity-based travel demand model-system via microsimulation

Cited by 11 publications

References 34 publications

Formulation and solution for calibrating boundedly rational activity-travel assignment: An exploratory study

Formulation and solution for calibrating boundedly rational activity-travel assignment: An exploratory study

Reducing pollutant emissions from vessel maneuvering in port areas

Evaluating the systemic effects of automated mobility-on-demand services via large-scale agent-based simulation of auto-dependent prototype cities

Contact Info

Product

Resources

About