Efficiency and Equity Performance of a Coordinated Ramp Metering Algorithm
نویسندگان
چکیده
منابع مشابه
Coordinated Ramp Metering for Freeways
Freeways were originally conceived to provide virtually unlimited mobility to road users. However, the continuous increase in car ownership and demand has led to a steady increase (in space and time) of recurrent and nonrecurrent freeway congestion, particularly within and around metropolitan areas. Freeway congestion causes excessive delays, increases fuel consumption and environmental polluti...
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The operations of freeway ramp metering and urban traffic network signal control are independent in most areas. Such situation may cause some conflict between traffic streams of the two subsystems, or, at least, their dynamic interactions have not been taken into account from an overall system viewpoint. Traffic performance can be improved if the controls of these two subnetworks are integrated...
متن کاملEfficiency and Equity Effects of Electricity Metering: Evidence from Colombia
I show that provision of electricity meters leads to a large reduction in electricity consumption over the first four months following meter installation. This is consistent with previous overconsumption by unmetered users facing a zero marginal price. However, it also reflects underconsumption by metered customers paying a marginal price exceeding marginal cost. I quantify these welfare effect...
متن کاملMeasuring the Equity and Efficiency of Ramp Meters
The general purpose of this study is to develop both efficient and equitable freeway ramp control strategies. Measures of efficiency and equity for ramp meters are defined and applied to data collected in the Twin Cities ramp metering shut-off experiment. A trade-off between efficiency and equity is evident from the results of data analysis. A new time-dependent optimization program for the glo...
متن کاملCongestion, ramp metering and tolls.
The cell transmission model of a freeway is used to compare four congestion-reducing schemes: (R) ramp control only; (T) one lane is tolled and ramps are uncontrolled; (B) bottlenecks are tolled and ramps are uncontrolled; and (RB) ramps are controlled and bottlenecks are tolled. In the base case, ramps are uncontrolled and there are no tolls. It is found that (T) is inefficient and may leave a...
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ژورنال
عنوان ژورنال: PROMET - Traffic&Transportation
سال: 2016
ISSN: 1848-4069,0353-5320
DOI: 10.7307/ptt.v28i5.2033