Estimation of Air Pollutant Emissions in Flower Roundabouts and in Conventional Roundabouts

Corriere, Ferdinando; Guerrieri, Marco; Ticali, Dario; Messineo, Antonio

doi:10.2478/ace-2013-0012

Cited by 26 publications

(10 citation statements)

References 12 publications

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“…UAVs are widely used both in military and civil application [1,2] such as fire prevention and emergency operations, surveillance, search and rescue. UAVs can be also applied in precision farming applications [3], instead of using wireless networks, or in the estimation of air pollutant emissions [4,5]. These applications have very specific constraints on power, cost, weight, space and flight endurance.…”

Section: Introductionmentioning

confidence: 99%

A fuzzy controller to reduce power consumption in a quadrotor helicopter for environmental monitoring

Pau

Tesoriere

Tirrito

2015

AIP Conference Proceedings

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The Unmanned Aerial Vehicles (UAV) are aircrafts with no pilot on board. They can be remote controlled aircraft (e.g. flown by a pilot at a ground control station) or can fly autonomously based on pre-programmed flight plans or more complex dynamic automation systems. UAVs are currently used both in military and civil application. A key element of UAV equipment affecting the mission performance is power source for this reason several approaches can be applied in order to reduce the power consumption. Fuzzy Logic Controllers (FLCs) are becoming increasingly popular in everyday life and their applications can obtain significant benefits in terms of energy management. In this paper a FLC is proposed in order to regulate the motor power of a quadrotor helicopter according to the battery level and to the path to complete. Simulation results reveal that using the proposed approach the battery lifetime is increased by 30% with respect to the use of fixed power.

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Section: Introductionmentioning

confidence: 99%

A fuzzy controller to reduce power consumption in a quadrotor helicopter for environmental monitoring

Pau

Tesoriere

Tirrito

2015

AIP Conference Proceedings

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“…A specifi c research has therefore been carried out to develop a procedure for determining railway ballast particle size distribution by means of the image processing technique. Such a technique has already given very good results when adopted in railway monitoring [1,2,3,4,5] as well as in numerous other fi elds of transport engineering [6,7,8,9,10,11]. The equipment used in the analyses consists of a high-resolution 16.1MP camera placed on a tripod at a prefi xed height of 0.80 m. The experimentation has been conducted on a new Italian railway line, along the section "EMS/La Malfa -Cardillo" in Palermo which already had laboratory data acquired by a certifi ed authority and in complete conformity with the Italian Railway Network Specifi cations (Capitolato RFI, n. XXXX OD D IF SP XX.XX.X.X 001 B).…”

Section: Introductionmentioning

confidence: 99%

A New High-Efficiency Procedure for Aggregate Gradation Determination of the Railway Ballast by Means Image Recognition Method

Guerrieri

Parla

2013

Archives of Civil Engineering

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The mechanical characteristics of the railway superstructure are related to the properties of the ballast, and especially to the particle size distribution of its grains. Under the constant stress-strain of carriages, the ballast can deteriorate over time, and consequently it should properly be monitored for safety reasons. The equipment which currently monitors the railway superstructure (like the Italian diagnostic train Archimede) do not make any “quantitative” evaluation of the ballast. The aim of this paper is therefore to propose a new methodology for extracting railway ballast particle size distribution by means of the image processing technique. The procedure has been tested on a regularly operating Italian railway line and the results have been compared with those obtained from laboratory experiments, thus assessing how effective is the methodology which could potentially be implemented also in diagnostic trains in the near future.

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“…Finally, emissions and consumption were measured with the aid of the COPERT IV ® software [26,30]. The suggested methodology, here only referring to a case study regarding roundabouts with a one ring lane, with or without bypasses (four layouts examined in total), has a general character and can therefore be applied to innovative roundabouts, but also to conventional multilane roundabouts.…”

Section: Introductionmentioning

confidence: 99%

“…The implementation of bypass lanes can bring environmental and energetic benefits, in that they reduce vehicle delays and, hence, pollutant emissions to the air [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Improving the Sustainability of Transportation: Environmental and Functional Benefits of Right Turn By-Pass Lanes at Roundabouts

Guerrieri¹,

Corriere²,

Rizzo³

et al. 2015

Sustainability

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Abstract:The functional performances of conventional roundabouts (single-lane and multi-lane) and innovative roundabouts (spiral, flower, C and turbo) can be improved through right-turn bypass lanes controlled by stop, yield or free-flow signs. The article presents evaluations of the emissions of air pollutants (carbon dioxide, nitrogen oxides, particle pollution (PM10 and PM2.5)), fuel consumption and construction, management, energetic and environmental costs in roundabouts without or with bypass lanes (controlled by stop, yield or free-flow). The suggested methodology has a general character and can be applied as a multi-parametric criterion for choosing road intersections, although, in the present paper, it has been employed only for a case study. For the aims of this research, we employed recent closed-form formulations to determine roundabout performances; moreover, we used the COPERT IV ® software to estimate air emissions in nine different types of vehicles. Numerous traffic simulations were carried out. The variation in the maximum hourly traffic Qmax and annual traffic QTOT provided the appropriate domains of the examined geometric layouts, both in functional and environmental terms and with regard to generalized costs, estimated for a 10-year period. It resulted that the introduction of right-turn bypasses in all arms of conventional roundabouts with a one ring lane and one lane at the entries (single-lane roundabouts) is the most cost-effective when the flows entering the roundabout are higher than Qmax = 2000 veh/h. Moreover, free-flow bypass lanes always OPEN ACCESSSustainability 2015, 7 5839 provide greater capacity and lower delays than stop-or yield-signaled bypasses. However, with extremely high Qmax values, stop-controlled bypasses guarantee lower fuel consumption, while those with a yield sign lower total costs.

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Estimation of Air Pollutant Emissions in Flower Roundabouts and in Conventional Roundabouts

Cited by 26 publications

References 12 publications

A fuzzy controller to reduce power consumption in a quadrotor helicopter for environmental monitoring

A fuzzy controller to reduce power consumption in a quadrotor helicopter for environmental monitoring

A New High-Efficiency Procedure for Aggregate Gradation Determination of the Railway Ballast by Means Image Recognition Method

Improving the Sustainability of Transportation: Environmental and Functional Benefits of Right Turn By-Pass Lanes at Roundabouts

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