Introducing Level-of-Service Standards for Intermodal Freight Terminals

Author(s):  
Athanasios Ballis
2001 ◽  
Vol 21 (4) ◽  
pp. 399-413 ◽  
Author(s):  
Bart W. Wiegmans ◽  
Peter Nijkamp ◽  
Enno Masurel

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Komgrit Leksakul ◽  
Sukrit Phetsawat

This study applied engineering techniques to develop a nurse scheduling model that, while maintaining the highest level of service, simultaneously minimized hospital-staffing costs and equitably distributed overtime pay. In the mathematical model, the objective function was the sum of the overtime payment to all nurses and the standard deviation of the total overtime payment that each nurse received. Input data distributions were analyzed in order to formulate a simulation model to determine the optimal demand for nurses that met the hospital’s service standards. To obtain the optimal nurse schedule with the number of nurses acquired from the simulation model, we proposed a genetic algorithm (GA) with two-point crossover and random mutation. After running the algorithm, we compared the expenses and number of nurses between the existing and our proposed nurse schedules. For January 2013, the nurse schedule obtained by GA could save 12% in staffing expenses per month and 13% in number of nurses when compare with the existing schedule, while more equitably distributing overtime pay between all nurses.


2016 ◽  
Vol 1 (1) ◽  
pp. 2-9 ◽  
Author(s):  
Graziana Cavone ◽  
Mariagrazia Dotoli ◽  
Carla Seatzu

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Zakiah Ponrahono ◽  
Syahriah Bachok ◽  
Mariana Mohamed Osman ◽  
Mansor Ibrahim ◽  
Muhammad Faris Abdullah

This study explore the stage bus performance of 48 routes within selected urban and regional settlements in Peninsula Malaysia, using a quantitative traffic engineering measure known as Level of Service standards or LOS and validated through the evaluation of passengers’ satisfaction level. The findings on the level of service (LOS) highlight the poor performance of the urban and rural bus service with the tolerable threshold below D. There are clear disparities on LOS and passenger satisfaction level between the urban and rural bus operation systems in terms of frequency, operation hour, bus speed, and passengers’ load threshold.


1999 ◽  
pp. 1-16
Author(s):  
Bart W. WIEGMANS ◽  
Peter NIJKAMP ◽  
Enno MASUREL

2019 ◽  
Vol 9 (12) ◽  
pp. 2558 ◽  
Author(s):  
Mariusz Kostrzewski ◽  
Arkadiusz Kostrzewski

The design of intermodal freight terminals requires extensive research and a thorough analysis of the technical, financial and organizational aspects. In the paper, the operation of the reposition of large cargo containers (one of the types of intermodal transport units, ITUs) on the dedicated places is subjected to a discussion. The analysis is carried out with the use of a vehicle equipped with a telescopic arm, such as a reach stacker. The considered storage facility is reduced to a block characterized by spatial accumulation given in the paper. The description of the procedure for the execution of the handling operation from the arrival of a tractor-trailer with a container into a terminal, followed by the ITUs being set aside in a dedicated place and, in the end, the departure of the truck without load, is given in the paper. The activities are described in detail in order to present a descriptive model of particular operations upon entry to the intermodal freight terminal. Moreover, the paper contains relevant figures illustrating the various steps of realization and the analysis of duration of activities supported by actual realizations. The durations of the individual activities described in the paper are experimental, and the results have been validated on real-world intermodal freight terminals. Therefore, the authors believe that the obtained values may be used in analytical, simulation and numerical models of intermodal freight terminals.


1998 ◽  
Vol 1636 (1) ◽  
pp. 116-123 ◽  
Author(s):  
Young-In Kwon ◽  
Shigeru Morichi ◽  
Tetsuo Yai

The aim of this study was to examine pedestrian behavior and suggest guidelines for analyzing pedestrian traffic flow in narrow urban streets with mixed traffic. For the analysis of pedestrian behavior, 15 streets around an urban railway station in Tokyo were surveyed, and several parameters were obtained, such as pedestrian paths around stationary obstacles; share of pedestrians using the sidewalk as a factor of street environment and traffic conditions; and influence distance of and for bicycles and cars. With respect to planning guidelines, the authors have simultaneously defined a new index of time-space occupancy ( Qt-si) of traffic modes in mixed-traffic conditions that considers the occupancy of time and space in the time-space diagram. Also, a new concept for level-of-service standards has been suggested for mixed-traffic conditions that employs the concept of time-space occupancy of each mode and hindrance/conflict between modes.


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