scholarly journals Emergency evacuation/transportation plan update: Traffic model development and evaluation of early closure procedures. Final report

1993 ◽  
Author(s):  
2021 ◽  
Author(s):  
Tiago Tamagusko ◽  
Adelino Ferreira

Designing an airport pavement is a complex engineering task. Thus, one of the first steps is to create scenarios for the operation of the airport. In this sense, the use of data analysis techniques can extract insights for this phase. Among the various parameters that characterize a runway, the most relevant is the structural capacity of the pavement and the length. For aviation, the standard for indicating the resistance of pavement is its Pavement Classification Number (PCN). Therefore, an application was developed in Python programming language [1], having as inputs the PCN and the runway length. Outputs are the aircraft supported by the pavement and the routes served (coverage). The development of this study follows the steps: a collection of real raw data about airports and aircrafts, data processing and cleaning, model development, model testing and application, result analysis, visualization, and final report. To test the model, the Viseu Aerodrome, located in the Center of Portugal region, was used. Several combinations have been created for PCN and runway length. Of all scenarios, three of them stood out, namely: maintain current characteristics (PCN 6 and length of 1160 m); an intermediate (PCN 23 and length of 1800 m); and a more robust scenario (PCN 83 and length of 2500 m). Finally, in the first scenario, it was possible to serve mainland Portugal, Spain, and a small portion of southern France. However, the operation was limited to small aircraft of up to 20 passengers. In the intermediate scenario, it was possible to serve much of the Schengen space with aircraft of up to 70 passengers. For the robust scenario, all Schengen space was served, with aircraft of up to 200 passengers. Therefore, based on two simple parameters, such as PCN and runway length, it was possible to visualize the coverage of an airport


Author(s):  
Victor J. Siaurusaitis ◽  
Larry J. Saben

The reasons for differences between locally collected data and the 1990 census data, as determined from a detailed analysis of model development efforts in a planning study, are detailed. Agencies around the country are beginning to use census data that have been adjusted based on newly released Federal Highway Administration publications. The recently completed Transportation Planner’s Handbook on Conversion Factors for the Use of Census Data has been published to assist planners in using the 1990 census to develop and calibrate local travel demand models. Collecting new data to complete the development of a local model is not always an option. The 1990 census provides another source of information to assist in traffic model estimation. Potential users of the census need to be aware that there would appear to be a variance between results obtained from the census journey-to-work files and locally developed home interview surveys, even after the use of the census adjustment factors. The project in Atlanta, Georgia, involved detailed traffic model development and calibration, in conjunction with factor-adjusted census data. Because of the intimate understanding of the data for the study area, and the development of the model set from the beginning, differences between the locally collected data and census were explainable. Possible problems that can arise when comparing the data as they relate to geography, data definition, and accuracy of the data collection process are detailed.


1982 ◽  
Author(s):  
K. Ushimaru ◽  
A. Bennett ◽  
P.J. Bekowies

2010 ◽  
Author(s):  
Oscar Franzese ◽  
Li Zhang ◽  
Anas M. Mahmoud ◽  
Mary Beth Lascurain ◽  
Yi Wen

1994 ◽  
Author(s):  
R.L. Jr. Robinson ◽  
K.A.M. Gasem ◽  
J. Park ◽  
J. Tong ◽  
R.D. Shaver ◽  
...  

1982 ◽  
Author(s):  
K. Ushimaru ◽  
A. Bennett ◽  
P.J. Bekowies

1981 ◽  
Author(s):  
Edward J. Schmitz ◽  
Brian D. Lepard ◽  
Frances C. Mushal ◽  
Jack I. Posner ◽  
Thomas B. Vassar

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