A NEW TOOL FOR THE EVALUATION OF CO2 EMISSIONS FROM ROAD TRAFFIC: A CASE STUDY IN CLUJ-NAPOCA, ROMANIA

Urban road tunnels are a reasonable remedy for inconvenience due to congested road traffic. However, they bring specific threats, especially those related to the possibility of fire outbreak. This work is a case study for selected urban road tunnels. Considering tunnel specificity, road traffic intensity, and structure and based on the literature data for vehicle fire probability, the chances of a fire accident were estimated for selected tunnels in Poland. It was shown that low power tunnel fires could be expected in the 10–20-year time horizon. Although such threats cannot be disregarded, tunnel systems are designed to cope with them. The chances of a disastrous fire accident were estimated as well. Such events can occur when an HGV with flammable goods or a tanker are involved. Such accidents are fortunately very rare, but, on the other hand, that is the reason why the available data are scanty and burdened with high uncertainty. Therefore, a discussion on the reliability of the obtained results is also provided.

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Short-term response of CO2 emissions to various leaf litters: a case study from freshwater marshes of Northeast China

Wetlands Ecology and Management ◽

10.1007/s11273-016-9506-y ◽

2016 ◽

Vol 25 (1) ◽

pp. 119-128

Author(s):

Chao Gong ◽

Changchun Song ◽

Xinhou Zhang ◽

Wenwen Tan ◽

Tianhua Qiao

Keyword(s):

Co2 Emissions ◽

Northeast China ◽

Short Term ◽

Freshwater Marshes ◽

Term Response

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International trade, FDI (foreign direct investment) and embodied CO2 emissions: A case study of Chinas industrial sectors

China Economic Review ◽

10.1016/j.chieco.2014.01.003 ◽

2014 ◽

Vol 28 ◽

pp. 123-134 ◽

Cited By ~ 155

Author(s):

Shenggang Ren ◽

Baolong Yuan ◽

Xie Ma ◽

Xiaohong Chen

Keyword(s):

Foreign Direct Investment ◽

International Trade ◽

Co2 Emissions ◽

Direct Investment ◽

Industrial Sectors ◽

Embodied Co2 Emissions

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The potential impacts of a digital preoperative assessment service on appointments, travel-related CO2 emissions, and user experience: a case study (Preprint)

10.2196/preprints.28612 ◽

2021 ◽

Author(s):

Madison Milne-Ives ◽

John Leyden ◽

Inocencio Maramba ◽

Ray Jones ◽

Arunangsu Chatterjee ◽

...

Keyword(s):

Co2 Emissions ◽

Preoperative Assessment ◽

Service Evaluation ◽

Primary Objective ◽

Face To Face ◽

Patient Feedback ◽

Potential Benefits ◽

Set Up ◽

Evaluation Of Data

BACKGROUND The NHS cannot keep up with the demand for operations and procedures. Preoperative assessments, which can last 30 minutes to 2 hours, could be conducted online to save patient and clinician time, reducing wait times for operations. MyPreOp is a cloud-based platform where patients can set up an account and complete their preoperative questionnaires. This data is reviewed by a nurse, who determines if they need a subsequent face-to-face appointment. OBJECTIVE The primary objective was to describe the potential impact of MyPreOp® (Ultramed Ltd, Penryn, UK) the number of face-to-face appointments. Secondary objectives were to examine the time spent on preoperative assessments completed using MyPreOp in everyday use in NHS Trusts and user ratings of usability and acceptability. METHODS A case study service evaluation of data collected by the MyPreOp system from two NHS Trusts (Guy’s and St Thomas’ and Royal United Hospitals Bath) and the private BMI Bath Clinic during the four-month period of September to December 2020. MyPreOp is delivered by the hospital conducting the preoperative assessment but is typically completed at home at the patients’ convenience. Participants were adults of any age and health status at the participating hospitals who used MyPreOp to complete a preoperative assessment before a scheduled surgery. The primary outcome was the number of face-to-face appointments avoided by patients who used MyPreOp. Secondary outcomes were the length of time spent by nurses completing preoperative assessments, associated travel-related CO2 emissions, and quantitative user feedback. RESULTS Data from 2,500 participants was included. Half of the patients assessed did not need a further face-to-face appointment and required a median of only 5.3 minutes of nurses’ time. The reduction in appointments was associated with a small saving of CO2e emissions (9.05 tonnes). Patient feedback was generally positive: 80% of respondents rated MyPreOp as easy or very easy to use and 85% thought the overall experience was good or very good. CONCLUSIONS This evaluation demonstrated potential benefits of MyPreOp. However, further research using rigorous scientific methodology and a larger sample of NHS Trusts and users is needed to provide strong evidence of MyPreOp’s efficacy, usability, and cost-effectiveness.

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Location Routing Problem with Consideration of CO2 Emissions Cost: A Case Study

Jurnal Teknik Industri ◽

10.22219/jtiumm.vol21.no2.225-234 ◽

2020 ◽

Vol 21 (2) ◽

pp. 225-234

Author(s):

Ananda Noor Sholichah ◽

Y Yuniaristanto ◽

I Wayan Suletra

Keyword(s):

Co2 Emissions ◽

Time Windows ◽

Optimal Solution ◽

Mixed Integer ◽

Distribution Centers ◽

Location Routing Problem ◽

Routing Problem ◽

Location Routing ◽

Study Results

Location and routing are the main critical problems investigated in a logistic. Location-Routing Problem (LRP) involves determining the location of facilities and vehicle routes to supply customer's demands. Determination of depots as distribution centers is one of the problems in LRP. In LRP, carbon emissions need to be considered because these problems cause global warming and climate change. In this paper, a new mathematical model for LRP considering CO2 emissions minimization is proposed. This study developed a new Mixed Integer Linear Programming (MILP) model for LRP with time windows and considered the environmental impacts. Finally, a case study was conducted in the province of Central Java, Indonesia. In this case study, there are three depot candidates. The study results indicated that using this method in existing conditions and constraints provides a more optimal solution than the company's actual route. A sensitivity analysis was also carried out in this case study.

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An autonomous navigational system using GPS and computer vision for futuristic road traffic

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v12i1.pp179-188 ◽

2022 ◽

Vol 12 (1) ◽

pp. 179

Author(s):

Prabha Ramasamy ◽

Mohan Kabadi

Keyword(s):

Computer Vision ◽

Global Positioning System ◽

Navigation System ◽

Autonomous Navigation ◽

Road Traffic ◽

Positioning System ◽

Traffic System ◽

Global Positioning ◽

Navigational System

Navigational service is one of the most essential dependency towards any transport system and at present, there are various revolutionary approaches that has contributed towards its improvement. This paper has reviewed the global positioning system (GPS) and computer vision based navigational system and found that there is a large gap between the actual demand of navigation and what currently exists. Therefore, the proposed study discusses about a novel framework of an autonomous navigation system that uses GPS as well as computer vision considering the case study of futuristic road traffic system. An analytical model is built up where the geo-referenced data from GPS is integrated with the signals captured from the visual sensors are considered to implement this concept. The simulated outcome of the study shows that proposed study offers enhanced accuracy as well as faster processing in contrast to existing approaches.

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Landscape depressions can create silent zones in noise polluted parks

INTER-NOISE and NOISE-CON Congress and Conference Proceedings ◽

10.3397/in-2021-2170 ◽

2021 ◽

Vol 263 (4) ◽

pp. 2550-2554

Author(s):

Timothy Van Renterghem ◽

Pieter Thomas ◽

Dick Botteldooren

Keyword(s):

Sound Pressure Level ◽

Sound Pressure ◽

Noise Exposure ◽

Road Traffic ◽

Traffic Noise ◽

Pressure Level ◽

Road Traffic Noise ◽

Efficient Measure ◽

Natural Means

Excessive road traffic noise exposure in (sub)urban parks hinders its restorative function and will negatively impact the number of visitors. Especially in such green environments, noise abatements by natural means, well integrated in the landscape, are the most desired solutions. Although dense vegetation bordering the park or raised berms could come first in mind, local landscape depressions are typically underused. In this work, a case-study of a small suburban park, squeezed in between two major arterial roads, is analyzed. The spatially dependent road traffic noise exposure in the park is assessed in detail by mobile sound pressure level measurements. Local reductions of up to 6-7 dBA are found at landscape depressions of only a few meters deep. It can therefore be concluded that this is an efficient measure and should be added to the environmental noise control toolbox for noise polluted parks.

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