Predicting Travel Time Variability for Cost-Benefit Analysis

State agencies, regional agencies, cities, towns, and local municipalities design and maintain transportation systems for the benefit of users by improving mobility, reducing travel time, and enhancing safety. Cost–benefit analysis based on travel time savings and the value of reliability helps these agencies in prioritizing transportation projects or when evaluating transportation alternatives. This paper illustrates the use of monetary values of travel time savings and travel time reliability, computed for the state of North Carolina, to help assess the impact of transportation projects or alternatives. The results obtained indicate that, based on the illustration of the effect and impact of various transportation projects or alternatives, both improved travel time and reliability on roads yield significant monetary benefits. However, from cost–benefit analysis, it is observed that greater benefits can be achieved through improved reliability compared with benefits from a decrease in travel time for a given section of road.

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Valuation of Travel Time Variability: Research Perspectives of Behavioral Modeling Approaches and Issues for Applying to Cost-Benefit Analsyis

INFRASTRUCTURE PLANNING REVIEW ◽

10.2208/journalip.27.437 ◽

2010 ◽

Vol 27 (0) ◽

pp. 437-448

Author(s):

Daisuke FUKUDA

Keyword(s):

Travel Time ◽

Cost Benefit ◽

Behavioral Modeling ◽

Time Variability ◽

Modeling Approaches ◽

Research Perspectives ◽

Travel Time Variability

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A method for measuring and valuing transport time variability in logistics and cost benefit analysis

Research in Transportation Economics ◽

10.1016/j.retrec.2017.03.001 ◽

2017 ◽

Vol 66 ◽

pp. 59-69 ◽

Cited By ~ 5

Author(s):

Matts Andersson ◽

Moa Berglund ◽

Jonas Flodén ◽

Christer Persson ◽

Jonas Waidringer

Keyword(s):

Cost Benefit Analysis ◽

Cost Benefit ◽

Time Variability ◽

Benefit Analysis ◽

Transport Time

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Congested Urban Areas with High Interactions Between Vehicular and Pedestrian Flows: A Cost-Benefit Analysis for a Sustainable Transport Policy in Naples, Italy

The Open Transportation Journal ◽

10.2174/1874447801812010273 ◽

2018 ◽

Vol 12 (1) ◽

pp. 273-288 ◽

Cited By ~ 5

Author(s):

Armando Cartenì ◽

Maria Luisa De Guglielmo ◽

Nicola Pascale

Keyword(s):

Travel Time ◽

Urban Areas ◽

Ad Hoc ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Simulation Models ◽

Specific Reference ◽

Sustainable Transport ◽

Benefit Analysis

Introduction/Methods:A significant application of the Sustainable Urban Mobility Plan of Naples, in southern Italy, will be described with specific reference to design a sustainable transport scenario for one of the highest density and congested area of the city: Municipio square, in the centre of Naples, where the homonymous station of the Metro Line 1 was under construction. The particularity of this case study is that Municipio Square is a high dense population area characterized by multimodal traffic flows (vehicles and pedestrians) and a thousand of travellers who embark/disembark every day from the marina to the islands of the Naples Gulf (e.g.Capri, Ischia) and cruises around the Mediterranean Sea. Thousands of vehicles and people pass through the square every day, often slowing the vehicular flows.Starting from these considerations, a multi-scale modelling architecture (estimatedad-hocfor the specific case study) was proposed to better evaluate policy impacts (e.g., transport, social, environmental), applying both macroscopic and microscopic simulation models simultaneously to design a sustainable transport scenario in term of both geometrical and traffic solutions.Results:Six different design scenario were compared and the main results of the most significant one are described and discussed. The best project solution reduces the average travel time and the long queues thanks to a better distribution of the flows (both vehicles and pedestrians) in the broader area around of Municipio square. The simulation results also underlined the benefits for pedestrians related to the presence of different size of sidewalks and paths.Conclusion:Because of the realization of the new metro station will increase the pedestrian flows, the external layout of the square was designed, regarding infrastructures and paths, to minimize the conflicts and reduce the overall travel time. The proposed sustainable transport scenario was conceived in term of best geometrical devices and traffic solutions.Finally, a cost-benefit analysis was also proposed, according to the European guidelines, aiming in improving transport, urbanistic, artistic/cultural, aesthetic, economic and environmental aspects as well as liveability for citizens, transport users (public and private) and tourists.

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Cost-benefit analysis of flight extended operations (ETOPS) for Garuda Indonesia airways

SHS Web of Conferences ◽

10.1051/shsconf/20184902015 ◽

2018 ◽

Vol 49 ◽

pp. 02015

Author(s):

Ratna Purwaningsih ◽

Lakshita Pritandari ◽

Haryo Santoso

Keyword(s):

Travel Time ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Cost Structure ◽

Benefit Analysis ◽

Fuel Cost ◽

Net Benefit ◽

Cost Component ◽

Direct Flight ◽

The Cost

Garuda Indonesia reducing the flight cost used flight extended operations (ETOPS). ETOPS can reduce travel time and fuel consumption. The cost-benefit analysis was conducted to compare the flight between NON ETOPS flight and ETOPS flight Cengkareng - Perth - Cengkareng route. Net benefit of ETOPS flight is USD 1.212.863 and NON ETOPS is USD 1.154.894. Cost structure analysis was conducted to identify the percentage of flight cost component. The biggest percentage of cost was direct flight cost. It is equal to 49,53% for route Cengkareng - Perth NON-ETOPS and 47,70% for ETOPS. While for the route Perth Cengkareng NON-ETOPS and ETOPS have the same amount of 46.03%. Based on the results of the cost-benefit analysis, it is evident that the ETOPS flight can reduce the fuel cost, although the flight requires trained pilots. Contribution of the paper is brief describe on the structure of revenue and expenditure items in airways business. The structure is specific, different from other transportation business.

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Travel Time Savings Perception and Well-Being through Public Transport Projects: The Case of Metro de Santiago

Urban Science ◽

10.3390/urbansci3010035 ◽

2019 ◽

Vol 3 (1) ◽

pp. 35

Author(s):

Cristobal Pineda ◽

Beatriz Lira

Keyword(s):

Life Satisfaction ◽

Travel Time ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Well Being ◽

Travel Times ◽

Benefit Analysis ◽

Travel Time Savings ◽

Time Savings ◽

Travel Satisfaction

Relying mostly on travel time savings, cost-benefit analysis has been widely used in transport project appraisals in the Chilean context, with utility maximisation theory as its background. Nevertheless, subjective well-being advocates have challenged the notion of the rational man underlying this theory by proposing that other trip attributes, individual perceptions and personal features mediate satisfaction with travel, alongside global well-being. Using the recently-opened Line 6 of Metro de Santiago (Chile) as a case study, this research has two main aims: (1) to verify to what extent travel time savings, which support the cost-benefit analysis process, are present after the launching of the new line; and (2) analyse the perception of passengers’ travel time savings, and to what extent this element contributes to the travel satisfaction and to the global well-being at the individual level. Using passive data from smart cards, the results show that travel times decreased by 14% in comparable trips after the launching of Line 6. Furthermore, a confirmatory factor analysis (CFA) construct is proposed, including travel and life satisfaction as latent variables of the model. This revealed that travel times in the Metro system are highly valued by people. However, this element does not mediate travel satisfaction, as users take low travel times for granted. Waiting times, stations’ design, safety and intermodality are perceived attributes that effectively mediate travel satisfaction. Moreover, the latter variable has a relevant influence on global life satisfaction, revealing that transport conditions mediate in day-to-day well-being. These results challenged travel time savings as the most important driver in transport projects’ appraisal processes, and some recommendations are made in order to incorporate these findings in future appraisals.

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