Competition and Equilibria of Private Toll Roads in a Traffic Network

2000 ◽  
Vol 1733 (1) ◽  
pp. 15-22 ◽  
Author(s):  
Hai Yang ◽  
Ka Kin Woo
Keyword(s):  
Network Flow ◽  
Toll Roads ◽  
Equilibrium Constraints ◽  
Analysis Method ◽  
Toll Road ◽  
Competitive Game ◽  
Road Capacity ◽  
Single Link ◽  
Sensitivity Analysis Method ◽  
Quasi Newton

The equilibria based on a situation in which two or more profitmaximizing private firms operate multiple toll roads in a road network are examined. The profits are interrelated because of demand interdependence in the network. A competitive game model is developed to analyze the strategic interactions between the private toll road operators in determining their supply (road capacity) and price (toll level) over the network. A simple but representative case of two competitive firms, each providing a single toll road (corresponding to a single link) on the network, is considered in which the two toll roads are either substitutable or complementary in terms of their demand interdependence. A quasi-Newton method in conjunction with a sensitivity analysis method of equilibrium network flow is used to determine the competitive game solutions subject to network equilibrium constraints.

scholarly journals Evaluation of minimum ramp distance in efforts to improve performance on Jakarta - Cikampek toll road

2022 ◽  
Vol 955 (1) ◽  
pp. 012015
Author(s):  
W Subiantoro ◽  
Pratiksol ◽  
R Mudiyono
Keyword(s):  
Level Of Service ◽  
Traffic Density ◽  
Toll Roads ◽  
Improve Performance ◽  
Toll Road ◽  
Road Capacity ◽  
Access Road ◽  
Ratio Speed

Abstract Toll road ramps that connect toll roads and arterial roads are often crowded until they are jammed by the activities of workers and school deliverers. And the rush hour that occurs in the morning and evening causes congestion on toll access roads both on and off ramps. The purpose of this research to find out how the performance condition of the toll access road with the distance that is currently available.. The method used in this paper is descriptive quantitative. By using the results of the Average Daily Traffic (ADT) survey at the intersection of West Bekasi, Cibitung and West Kerawang during the morning and evening rush hours. The results of the survey and analysis using the 1997 Indonesian Road Capacity Manual (IRCM) standard obtained a ratio of volume to capacity (v/c ratio), speed and traffic density, these characteristics were then used to find the Level Of Service (LOS) obtained by LOS F (VCR >1). The conclusion from the analysis is that the performance of the connecting road/ramp often occurs during rush hour with the lowest LOS F values in the morning and evening, so it is necessary to evaluate the minimum ramp distance.

scholarly journals PENDEKATAN EKSPLORASI MENGENAI PERSEPSI MASYARAKAT DALAM MENGGUNAKAN E-MONEY PADA JALUR TOL DI KOTA MAKASSAR

SIMAK ◽  
2020 ◽  
Vol 18 (01) ◽  
pp. 84-100
Author(s):  
Hendrikus Kadang ◽  
Virginia Rosalia G ◽  
Thomas Th. Abraham ◽  
Nataniel Papalangi
Keyword(s):  
Service Providers ◽  
Structured Interview ◽  
Toll Roads ◽  
Analysis Method ◽  
Risk Levels ◽  
Toll Road ◽  
Interview Method ◽  
Road Users ◽  
Open Coding ◽  
Cross Case Analysis

Various studies on the use of e-money have been conducted and most of them use the positivism approach, so that it is rarely found in the form of an exploration approach especially with regard to toll roads. The purpose of this study is to explore, describe and analyze people's perceptions in using e-money on the toll road in Makassar City. This study uses a semi-structured interview method in the process of collecting data in the analysis unit. The population of this study consists of three categories: toll road users and e-money users, e-money experts, and toll service providers with 10 participants to be interviewed. Data analysis method used is thematic analysis with the help of cross-case analysis. Based on the results of open coding, it can be concluded that e-money is one form of easy transactions and the use of e-money that is safe, efficient payment and saves time, e-money risk levels are lower. Meanwhile, the way to overcome the problem of using e-money on toll roads is to print and save transaction receipts, maintain e-money cards, make compensation, prepare officers, socialize, and register with vendors.

Efficient Sensitivity Analysis for Multibody Dynamics Systems Using an Iterative Steps Method With Application in Topology Optimization

2011 ◽  
Author(s):  
Guang Dong ◽  
Zheng-Dong Ma ◽  
Gregory Hulbert ◽  
Noboru Kikuchi ◽  
Sudhakar Arepally ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Topology Optimization ◽  
Multibody Dynamics ◽  
Optimization Problem ◽  
Finite Difference Methods ◽  
Analysis Method ◽  
Topology Optimization Problem ◽  
Design Variables ◽  
Sensitivity Analysis Method ◽  
Rotational Motions

Efficient and reliable sensitivity analyses are critical for topology optimization, especially for multibody dynamics systems, because of the large number of design variables and the complexities and expense in solving the state equations. This research addresses a general and efficient sensitivity analysis method for topology optimization with design objectives associated with time dependent dynamics responses of multibody dynamics systems that include nonlinear geometric effects associated with large translational and rotational motions. An iterative sensitivity analysis relation is proposed, based on typical finite difference methods for the differential algebraic equations (DAEs). These iterative equations can be simplified for specific cases to obtain more efficient sensitivity analysis methods. Since finite difference methods are general and widely used, the iterative sensitivity analysis is also applicable to various numerical solution approaches. The proposed sensitivity analysis method is demonstrated using a truss structure topology optimization problem with consideration of the dynamic response including large translational and rotational motions. The topology optimization problem of the general truss structure is formulated using the SIMP (Simply Isotropic Material with Penalization) assumption for the design variables associated with each truss member. It is shown that the proposed iterative steps sensitivity analysis method is both reliable and efficient.

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