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The methodology aims at keeping the off-ramp flowing uncongested, eliminating the queue in the freeway and leaving the remaining capacity for the competing traffic. An experiment to test the mechanism was conducted on an urban freeway in Santiago, Chile confirming the opportunity for improvements in the system as a whole.
This paper first explains why ramp metering can lead to a dramatic amelioration of traffic conditions on freeways. An overview of ramp metering algorithms is provided next, ranging from early fixed-time approaches to traffic-responsive regulators and to modern sophisticated nonlinear optimal control schemes.
Learn how to design, operate, and maintain freeway entrance and exit ramps for optimal mobility and safety. The handbook covers ramp metering, ramp signaling, ramp signals, and other strategies and benefits of ramp management.
Interchanges are comprised of individual ramps. The primary components of a ramp include the freeway mainline ramp terminal (i.e., an acceleration or deceleration lane or also referred to as a speed-change lane), the ramp proper (i.e., the turning roadway), and the crossroad ramp terminal.
Freeway or Expressway ramp means all types, arrangements, and sizes of turning roadways for right or left turning vehicles that connect two or more legs at an interchange and the components of a ramp area terminal at each leg and a connection road, usually with some curvature and on a grade. Sample 1 Sample 2. Based on 2 documents.
This chapter provides a high-level overview of potential actions that improve freeway performance by modifying the roadway itself, such as adding lanes to increase capacity (and thereby increase operational efficiency) at roadway bottlenecks, ramps, interchanges, or other roadway locations; and making changes to the geometric configuration or ...
1 de ene. de 2003 · An overview of ramp metering algorithms is provided next, ranging from early fixed-time approaches to traffic-responsive regulators and to modern sophisticated nonlinear optimal control schemes.
