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Physical Sciences and Mathematics Commons™
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- Institution
- Keyword
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- Ennore (India)--Environmental conditions (2)
- Harbors--Design and construction (2)
- Harbors--Environmental aspects--India--Ennore (2)
- Marine ecology--India--Ennore (2)
- Singapore (2)
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- ANOVA test (1)
- Activity survey (1)
- Agent based simulation (1)
- Air pollution (1)
- Algorithm (1)
- Anomaly detection (1)
- Barges (1)
- Book Review; International Aviation (1)
- Brexit, shipping industry, SWOT-PEST (1)
- Capsize shipping, freight, ARIMA model, forecast (1)
- Chinese port, horizontal port integration, port industry (1)
- Climate change (1)
- Clustering (1)
- Cold chain logistics, Rokin logistics, optimization, logistics center location, center of gravity method (1)
- Complex factors (1)
- Constraint programming (1)
- Container transshipment, Shanghai port, Singapore port, Yangshan port (1)
- Cost effective (1)
- DBSCAN (1)
- Data mining (1)
- Densely populated city (1)
- Driver Income (1)
- Driver guidance (1)
- Electronic navigation charts (1)
- Environmental impact statement (1)
- Publication
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- World Maritime University Dissertations (18)
- Research Collection School Of Computing and Information Systems (16)
- Graduate Student Portfolios, Professional Papers, and Capstone Projects (1)
- International Journal of Aviation, Aeronautics, and Aerospace (1)
- Master's Theses and Doctoral Dissertations (1)
- Publication Type
Articles 1 - 30 of 39
Full-Text Articles in Physical Sciences and Mathematics
Using Smart Card Data To Model Commuters’ Responses Upon Unexpected Train Delays, Xiancai Tian, Baihua Zheng
Using Smart Card Data To Model Commuters’ Responses Upon Unexpected Train Delays, Xiancai Tian, Baihua Zheng
Research Collection School Of Computing and Information Systems
The mass rapid transit (MRT) network is playing an increasingly important role in Singapore's transit network, thanks to its advantages of higher capacity and faster speed. Unfortunately, due to aging infrastructure, increasing demand, and other reasons like adverse weather condition, commuters in Singapore recently have been facing increasing unexpected train delays (UTDs), which has become a source of frustration for both commuters and operators. Most, if not all, existing works on delay management do not consider commuters' behavior. We dedicate this paper to the study of commuters' behavior during UTDs. We adopt a data-driven approach to analyzing the six-month' real …
Integrated Reward Scheme And Surge Pricing In A Ride-Sourcing Market, Hai Yang, Chaoyi Shao, Hai Wang, Jieping Ye
Integrated Reward Scheme And Surge Pricing In A Ride-Sourcing Market, Hai Yang, Chaoyi Shao, Hai Wang, Jieping Ye
Research Collection School Of Computing and Information Systems
Surge pricing is commonly used in on-demand ride-sourcing platforms (e.g., Uber, Lyft and Didi) to dynamically balance demand and supply. However, since the price for ride service cannot be unlimited, there is usually a reasonable or legitimate range of prices in practice. Such a constrained surge pricing strategy fails to balance demand and supply in certain cases, e.g., even adopting the maximum allowed price cannot reduce the demand to an affordable level during peak hours. In addition, the practice of surge pricing is controversial and has stimulated long debate regarding its pros and cons. To address the limitation of current …
Challenges Towards Sustainable Port Development In India: The Adverse Effects Of Port Development On Coastal Ecology And Community In Ennore : A Case Study, Balaji Balasubramanian
Challenges Towards Sustainable Port Development In India: The Adverse Effects Of Port Development On Coastal Ecology And Community In Ennore : A Case Study, Balaji Balasubramanian
World Maritime University Dissertations
No abstract provided.
Challenges Towards Sustainable Port Development In India: The Adverse Effects Of Port Development On Coastal Ecology And Community In Ennore : Case Study, Balaji Balasubramanian
Challenges Towards Sustainable Port Development In India: The Adverse Effects Of Port Development On Coastal Ecology And Community In Ennore : Case Study, Balaji Balasubramanian
World Maritime University Dissertations
Ports and shipping play a crucial role in the coastal development, however, it possesses numerous potential risks to the marine environment and the coastal community. Sustainable development is a key concept which integrates the triple bottom line: economic, environmental and social elements into all aspects of decision making. This paper explores and analyses the challenges towards the progression of sustainable development of Indian ports, taking the Ennore port in India as a case study. My objectives in this research were to highlight the lack of consensus on the importance of the two pillars, environmental and social in the concept of …
A Study On The Definition Of Ship Related Seaborne Oil Transportation, Seokjin Kang
A Study On The Definition Of Ship Related Seaborne Oil Transportation, Seokjin Kang
World Maritime University Dissertations
No abstract provided.
Inferring Trip Occupancies In The Rise Of Ride-Hailing Services, Meng-Fen Chiang, Ee-Peng Lim, Wang-Chien Lee, Tuan-Anh Hoang
Inferring Trip Occupancies In The Rise Of Ride-Hailing Services, Meng-Fen Chiang, Ee-Peng Lim, Wang-Chien Lee, Tuan-Anh Hoang
Research Collection School Of Computing and Information Systems
The knowledge of all occupied and unoccupied trips made by self-employed drivers are essential for optimized vehicle dispatch by ride-hailing services (e.g., Didi Dache, Uber, Lyft, Grab, etc.). However, the occupancy status of vehicles is not always known to the service operators due to adoption of multiple ride-hailing apps. In this paper, we propose a novel framework, Learning to INfer Trips (LINT), to infer occupancy of car trips by exploring characteristics of observed occupied trips. Two main research steps, stop point classification and structural segmentation, are included in LINT. In the stop point classification step, we represent a vehicle trajectory …
Traffic-Cascade: Mining And Visualizing Lifecycles Of Traffic Congestion Events Using Public Bus Trajectories, Agus Trisnajaya Kwee, Meng-Fen Chiang, Philips Kokoh Prasetyo, Ee-Peng Lim
Traffic-Cascade: Mining And Visualizing Lifecycles Of Traffic Congestion Events Using Public Bus Trajectories, Agus Trisnajaya Kwee, Meng-Fen Chiang, Philips Kokoh Prasetyo, Ee-Peng Lim
Research Collection School Of Computing and Information Systems
As road transportation supports both economic and social activities in developed cities, it is important to maintain smooth traffic on all highways and local roads. Whenever possible, traffic congestions should be detected early and resolved quickly. While existing traffic monitoring dashboard systems have been put in place in many cities, these systems require high-cost vehicle speed monitoring instruments and detect traffic congestion as independent events. There is a lack of low-cost dashboards to inspect and analyze the lifecycle of traffic congestion which is critical in assessing the overall impact of congestion, determining the possible the source(s) of congestion and its …
Transferring Time-Series Discrete Choice To Link-Based Route Choice In Space: Estimating Vehicle Type Preference Using Recursive Logit Model, Fabian Bastin, Yan Liu, Cinzia Cirillo, Tien Mai
Transferring Time-Series Discrete Choice To Link-Based Route Choice In Space: Estimating Vehicle Type Preference Using Recursive Logit Model, Fabian Bastin, Yan Liu, Cinzia Cirillo, Tien Mai
Research Collection School Of Computing and Information Systems
This paper considers a sequential discrete choice problem in a time domain, formulated and solved as a route choice problem in a space domain. Starting from a dynamic specification of time-series discrete choices, we show how it is transferrable to link-based route choices that can be formulated by a finite path choice multinomial logit model. This study establishes that modeling sequential choices over time and in space are equivalent as long as the utility of the choice sequence is additive over the decision steps, the link-specific attributes are deterministic, and the decision process is Markovian. We employ the recursive logit …
Optimization For Lng Terminals Routing In North China, Shuting Wang
Optimization For Lng Terminals Routing In North China, Shuting Wang
World Maritime University Dissertations
No abstract provided.
Diagnosis On Layout Of China’S Multimodal Demonstration Project, Jingyi Xu
Diagnosis On Layout Of China’S Multimodal Demonstration Project, Jingyi Xu
World Maritime University Dissertations
No abstract provided.
Analysis Of Shanghai Aviation Hub Logistics Competitiveness, Tuo Chen
Analysis Of Shanghai Aviation Hub Logistics Competitiveness, Tuo Chen
World Maritime University Dissertations
No abstract provided.
How Chinese Enterprises Evaluate The Investment Value Of Seaports Along The “One Belt One Road”, Ziyang Zhang
How Chinese Enterprises Evaluate The Investment Value Of Seaports Along The “One Belt One Road”, Ziyang Zhang
World Maritime University Dissertations
No abstract provided.
How To Reduce Cost And Increase Efficiency Of Shipping Enterprises In Developing Service Supply Chain, Junfeng Zhu
How To Reduce Cost And Increase Efficiency Of Shipping Enterprises In Developing Service Supply Chain, Junfeng Zhu
World Maritime University Dissertations
No abstract provided.
Horizontal Integration In The Port Industry In China Challenges And Outlook, Jiren Chen
Horizontal Integration In The Port Industry In China Challenges And Outlook, Jiren Chen
World Maritime University Dissertations
No abstract provided.
Study On The Fluctuation And Forecasting Of Capsize Bulk Carrier’S Freight, Kelun Wei
Study On The Fluctuation And Forecasting Of Capsize Bulk Carrier’S Freight, Kelun Wei
World Maritime University Dissertations
No abstract provided.
The Influence Of A Brexit On China’S Shipping Industry, Xiaoting Luo
The Influence Of A Brexit On China’S Shipping Industry, Xiaoting Luo
World Maritime University Dissertations
No abstract provided.
Exploring The Source Of Container Cargo And Passenger Flow : A Case Of Shanghai Port, Dong Xu
Exploring The Source Of Container Cargo And Passenger Flow : A Case Of Shanghai Port, Dong Xu
World Maritime University Dissertations
No abstract provided.
The Impact Of Wti And The Ordering Of Crude Tankers On Tanker Spot Freight Rate, Jiajia Xu
The Impact Of Wti And The Ordering Of Crude Tankers On Tanker Spot Freight Rate, Jiajia Xu
World Maritime University Dissertations
No abstract provided.
Research On The Route Optimization Of Huzhou Port’S Outbound Container, Bo Zhang
Research On The Route Optimization Of Huzhou Port’S Outbound Container, Bo Zhang
World Maritime University Dissertations
No abstract provided.
Study On The Efficiency Of China’S Main River Ports Based On Dea Model, Yunwu Cao
Study On The Efficiency Of China’S Main River Ports Based On Dea Model, Yunwu Cao
World Maritime University Dissertations
No abstract provided.
International Container Logistics Transshipment Service : Comparison Between Shanghai Port And Singapore Port, Tingyu Han
World Maritime University Dissertations
No abstract provided.
On Optimization Of Cold Chain Logistics Systems For Rokin Logistics Company, Huimin Luo
On Optimization Of Cold Chain Logistics Systems For Rokin Logistics Company, Huimin Luo
World Maritime University Dissertations
No abstract provided.
Comparative Study On Port Logistics Service Capability Of China’S Main Ports, Yiwen Song
Comparative Study On Port Logistics Service Capability Of China’S Main Ports, Yiwen Song
World Maritime University Dissertations
No abstract provided.
Activity Pattern Of School/University Tenants And Their Family Members In Metro Manila – Philippines, Simonas Kecorius, Everlyn Gale Tamayo, Maria Cecilia Galvez, Leizel Madueño, Grace Betito, Mylene Gonzaga-Cayetano, Edgar Vallar, Alfred Wiedensohler
Activity Pattern Of School/University Tenants And Their Family Members In Metro Manila – Philippines, Simonas Kecorius, Everlyn Gale Tamayo, Maria Cecilia Galvez, Leizel Madueño, Grace Betito, Mylene Gonzaga-Cayetano, Edgar Vallar, Alfred Wiedensohler
Physics Faculty Publications
Existing studies that focus on personal exposure to or the deposition dose of particulate pollution in developing regions are limited. Hence, in this study, as a first step, we present results on how people spend their daily time in Metro Manila, Philippines. This information is critical to assessing personal exposure to and the deposition dose of particulate pollutants. We found that people spend less time at home on workdays than weekends (52% versus 70%), the fraction of time spent at work/school increases with age until retirement, adult males spend less time at home than females (18% versus 28%), and people …
Deeptravel: A Neural Network Based Travel Time Estimation Model With Auxiliary Supervision, Hanyuan Zhang, Hao Wu, Weiwei Sun, Baihua Zheng
Deeptravel: A Neural Network Based Travel Time Estimation Model With Auxiliary Supervision, Hanyuan Zhang, Hao Wu, Weiwei Sun, Baihua Zheng
Research Collection School Of Computing and Information Systems
Estimating the travel time of a path is of great importance to smart urban mobility. Existing approaches are either based on estimating the time cost of each road segment or designed heuristically in a non-learning-based way. The former is not able to capture many cross-segment complex factors while the latter fails to utilize the existing abundant temporal labels of the data, i.e., the time stamp of each trajectory point. In this paper, we leverage on new development of deep neural networks and propose a novel auxiliary supervision model, namely DeepTravel, that can automatically and effectively extract different features, as well …
Taxis Strike Back: A Field Trial Of The Driver Guidance System, Shih-Fen Cheng, Shashi Shekhar Jha, Rishikeshan Rajendram
Taxis Strike Back: A Field Trial Of The Driver Guidance System, Shih-Fen Cheng, Shashi Shekhar Jha, Rishikeshan Rajendram
Research Collection School Of Computing and Information Systems
Traditional taxi fleet operators world-over have been facing intense competitions from various ride-hailing services such as Uber and Grab (specific to the Southeast Asia region). Based on our studies on the taxi industry in Singapore, we see that the emergence of Uber and Grab in the ride-hailing market has greatly impacted the taxi industry: the average daily taxi ridership for the past two years has been falling continuously, by close to 20% in total. In this work, we discuss how efficient real-time data analytics and large-scale multi-agent optimization technology could potentially help taxi drivers compete against more technologically advanced service …
Situation-Aware Authenticated Video Broadcasting Over Train-Trackside Wifi Networks, Yongdong Wu, Dengpan Ye, Zhuo Wei, Qian Wang, William Tan, Robert H. Deng
Situation-Aware Authenticated Video Broadcasting Over Train-Trackside Wifi Networks, Yongdong Wu, Dengpan Ye, Zhuo Wei, Qian Wang, William Tan, Robert H. Deng
Research Collection School Of Computing and Information Systems
Live video programmes can bring in better travel experience for subway passengers and earn abundant advertisement revenue for subway operators. However, because the train-trackside channels for video dissemination are easily accessible to anyone, the video traffic are vulnerable to attacks which may cause deadly tragedies. This paper presents a situation-aware authenticated video broadcasting scheme in the railway network which consists of train, on-board sensor, trackside GSM-R (Global System for Mobile Communications-Railway) device, WiFi AP (Access Point), and train control center. Specifically, the scheme has four modules: (1) a train uses its on-board sensors to obtain its speed, location, and RSSI …
A Driver Guidance System For Taxis In Singapore, Shashi Shekhar Jha, Shih-Fen Cheng, Meghna Lowalekar, Nicholas Wong, Rishikeshan Rajendram, Pradeep Varakantham, Nghia Troung Troung, Firmansyah Bin Abd Rahman
A Driver Guidance System For Taxis In Singapore, Shashi Shekhar Jha, Shih-Fen Cheng, Meghna Lowalekar, Nicholas Wong, Rishikeshan Rajendram, Pradeep Varakantham, Nghia Troung Troung, Firmansyah Bin Abd Rahman
Research Collection School Of Computing and Information Systems
Traditional taxi fleet operators world-over have been facing intense competitions from various ride-hailing services such as Uber and Grab.Based on our studies on the taxi industry in Singapore, we see that the emergence of Uber and Grab in the ride-hailing market has greatly impacted the taxi industry: the average daily taxi ridership for the past two years has been falling continuously, by close to 20% in total. In this work, we discuss how efficient real-time data analytics and large-scale multiagent optimization technology could help taxi drivers compete against more technologically advanced service platforms. Our system has been in field trial …
Analysis Of Public Transportation Patterns In A Densely Populated City With Station-Based Shared Bikes, Di Wang, Evan Wu, Ah-Hwee Tan
Analysis Of Public Transportation Patterns In A Densely Populated City With Station-Based Shared Bikes, Di Wang, Evan Wu, Ah-Hwee Tan
Research Collection School Of Computing and Information Systems
Densely populated cities face great challenges of high transportation demand and limited physical space. Thus, in these cities, the public transportation system is heavily relied on. Conventional public transportation modes such as bus, taxi and subway have been globally deployed over the past century. In the last decade, a new type of public transportation mode, shared bike, emerged in many cities. These shared bikes are deployed by either government-regulated or profit-driven companies and are either station-based or station-less. Nonetheless, all of them are designed to better solve the last-mile problem in densely populated cities as complements to the conventional public …
Book Review: Fundamentals Of International Aviation, Alan Bender
Book Review: Fundamentals Of International Aviation, Alan Bender
International Journal of Aviation, Aeronautics, and Aerospace
Not applicable.