A real-time smart metering system has strict requirements, since every piece of data gathered from various meters every hour is of importance, and each component consisting of metering infrastructure should be sustainable. Therefore, it is necessary to efficiently manage the meter data set in smart metering networks as well as in a server. Therefore, we propose a dedicated file system, a LIght-...

Congestion is always a serious problem in many transportation commuting corridors. The need to implement effective control in the corridors has long been recognized by transportation professionals. Ramp metering has been discussed as a viable control strategy on freeways in many places of the US, which may alleviate or at least reduce the delay. In this study, a dynamic ramp metering control mo...

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...

The purpose of this study was to develop and evaluate the flow rate, spray pattern, and droplet spectra characteristics of an actively controlled variable-orifice nozzle at constant carrier pressures. A commercially available variable-orifice nozzle (VariTarget) was modified to allow for direct electromechanical control of the metering stem. The modified system was tested at five carrier pressu...

This paper describes the evaluation approach that will be used to assess the performance of the Ramp Metering Control (RMC) for the New Jersey Department of Transportation in the United States. The primary objectives of the evaluation are to assess the impact of RMC control strategies on traffic flow and support the analysis of critical operational procedures. The framework for the evaluation c...

This paper formulates the ramp metering control problem as a real-time feedback control problem. The development is shown by modeling freeway sections, and hence the results are immediately applicable to isolated ramp metering problems. The ideas presented in this paper can be utilized to develop coordinated ramp metering feedback control techniques. Three different forms of the formulation for...

The recently developed traffic-responsive feedback control strategy HERO (HEuristic Ramp metering cOordination), that coordinates local ramp-metering actions in freeway networks, was implemented at the M1/M3 Freeway in Queensland, Australia. HERO employs an extended version of the feedback regulator ALINEA at the local level. HERO outperforms uncoordinated local ramp metering and approaches the...

Optimized Profile Descent (OPD) is an arrival procedure for the Next Generation Air Transportation System (NextGen), which has been demonstrated to effectively decrease noise, emissions and fuel costs. Reference [1] identifies optimal sequencing and spacing policies for OPD operations under uncertainty and shows that the use of these policies at given metering points is expected to result in po...

Asperula glomerata, the plants belonging to value and range are protein classes in a three stage, active vegetative growth, flowering and seed respectively, is equal to 9/9, 10/1, 9/6. This plant also aspects of soil conservation are also important. In the treatment of diseases such as lowering blood pressure is use to reduce inflammation.   Asperula glomerata in 1389 in two stage, active veg...