Damage and cost simulation in pumped storm sewers

1979 ◽  
Vol 6 (1) ◽  
pp. 129-138
Author(s):  
E. H. Imam ◽  
J A McCorquodale ◽  
J K Bewtra
Keyword(s):  
Urban Areas ◽  
Damage Model ◽  
Design Procedure ◽  
Flow Simulation ◽  
Laboratory Model ◽  
Cost Models ◽  
The Road ◽  
Design Variables ◽  
Relaxation Procedure ◽  
On The Road

A flow-damage model has been developed to predict the annual probable damage due to basement and street floodings in relatively flat urban areas where pumping is required. The damage cost is obtained by integrating damages due to high as well as low probability storms. Annual capital recovery costs are also computed. The flow simulation is based on the Road Research Laboratory model, the Muskingum method, and a relaxation procedure for computation of surcharge conditions. The model can be used for design purposes or to evaluate existing systems. A suggested design procedure incorporating the flow-damage and installation cost models along with linear programming has been used to obtain an optimum design for a given pumped storm-sewer system. The optimal design is achieved when the combined cost of annual operating capital recovery, and annual probable damage is minimum. The design variables include the depths, slopes and diameters of the sewers. as well as sump area, rated pumping head, and discharge.

scholarly journals RCVC: RSU-Aided Cluster-Based Vehicular Clouds Architecture for Urban Areas

Electronics ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 193
Author(s):  
Mohamed Ben bezziane ◽  
Ahmed Korichi ◽  
Chaker Abdelaziz Kerrache ◽  
Mohamed el Amine Fekair
Keyword(s):  
Urban Areas ◽  
High Speed ◽  
Service Discovery ◽  
Cluster Head ◽  
Experimental Comparison ◽  
The Road ◽  
Road Side Unit ◽  
End To End Delay ◽  
End To End ◽  
On The Road

As a promising topic of research, Vehicular Cloud (VC) incorporates cloud computing and ad-hoc vehicular network (VANET). In VC, supplier vehicles provide their services to consumer vehicles in real-time. These services have a significant impact on the applications of internet access, storage and data. Due to the high-speed mobility of vehicles, users in consumer vehicles need a mechanism to discover services in their vicinity. Besides this, quality of service varies from one supplier vehicle to another; thus, consumer vehicles attempt to pick out the most appropriate services. In this paper, we propose a novel protocol named RSU-aided Cluster-based Vehicular Clouds protocol (RCVC), which constructs the VC using the Road Side Unit (RSU) directory and Cluster Head (CH) directory to make the resources of supplier vehicles more visible. While clusters of vehicles that move on the same road form a mobile cloud, the remaining vehicles form a different cloud on the road side unit. Furthermore, the consumption operation is achieved via the service selection method, which is managed by the CHs and RSUs based on a mathematical model to select the best services. Simulation results prove the effectiveness of our protocol in terms of service discovery and end-to-end delay, where we achieved service discovery and end-to-end delay of 3 × 10−3 s and 13 × 10−2 s, respectively. Moreover, we carried out an experimental comparison, revealing that the proposed method outperformed several states of the art protocols.

scholarly journals Happiness in Romanian cities on the road from post-communism transition to EU accession

REGION ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 1 ◽  
Author(s):  
Camilla Lenzi ◽  
Giovanni Perucca
Keyword(s):  
Economic Growth ◽  
Life Satisfaction ◽  
Rural Communities ◽  
Urban Areas ◽  
Eu Accession ◽  
The Road ◽  
On The Road ◽  
Post Communism ◽  
The One ◽  
Economic Growth Rates

<p>The literature on life satisfaction in transition countries, and in particular on Romania, demonstrated that life satisfaction significantly differs across rural communities and cities of different size. The question addressed in this paper is whether these imbalances are stable over time or, instead, they become manifest in the presence of strong divergences in the economic growth rates of different kinds of communities. Results point out that in the period of sharp economic growth led by large urban areas, as the one experienced by Romania on the road to EU accession, rural/urban disparities in life satisfaction widened, favoring cities of intermediate size.</p>

scholarly journals New Operating Strategies for an On-the-Road Modular, Electric and Autonomous Vehicle Concept in Urban Transportation

2019 ◽  
Vol 10 (4) ◽  
pp. 91
Author(s):  
Christian Ulrich ◽  
Horst E. Friedrich ◽  
Jürgen Weimer ◽  
Stephan A. Schmid
Keyword(s):  
Business Model ◽  
Urban Areas ◽  
Business Models ◽  
Autonomous Vehicle ◽  
Vehicle Concept ◽  
Drive Unit ◽  
The Road ◽  
Business Model Canvas ◽  
Operating Strategies ◽  
On The Road

Today commercial transport in urban areas faces major challenges. These include making optimal use of limited space, avoiding empty trips, meeting driver shortages as well as reducing costs and emissions such as CO2, particulate matter and noise. The mutual acceleration and reinforcement of technological trends such as electrification, digitization and automation may enable new vehicle and mobility concepts that can meet these challenges. One possible vehicle concept is presented in this article. It is based on on-the-road modularization, i.e., a vehicle that can change different transport capsules during operation. The vehicle is divided into an electrically propelled autonomous drive unit and a transport unit. Standardized interfaces between these units enable the easy design of capsules for different uses, while the drive unit can be used universally. Business models and operating strategies that allow optimal use of this vehicle concept are discussed in depth in the article. First, the current situation is analyzed followed by a detailed description of an exemplary business model using a business model canvas. The operating strategies and logistics concepts are illustrated and compared with conventional concepts.

scholarly journals Practicalities and Driving Dynamics of a Real Driving Emissions (RDE) Euro 6 Regulation Homologation Test

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2306 ◽  
Author(s):  
Timothy Bodisco ◽  
Ali Zare
Keyword(s):  
Air Pollution ◽  
Boundary Conditions ◽  
Urban Areas ◽  
Exhaust Emissions ◽  
Gold Coast ◽  
Passenger Cars ◽  
Certification Process ◽  
The Road ◽  
Emission Testing ◽  
On The Road

One of the most important sources of air pollution, especially in urban areas, is the exhaust emissions from passenger cars. New European emissions regulations, to minimize the gap between manufacturer-reported emissions and those emitted on the road, require new vehicles to undergo emission testing on public roads during the certification process. Outlined in the new regulation are specific boundary conditions to which the route on which the vehicle is driven must comply during a legal test. These boundary conditions, as they relate to the design and subsequent driving of a compliant route, are discussed in detail. The practicality of designing a compliant route is discussed in the context of developing a route on the Gold Coast in Queensland, Australia, in a prescriptive manner. The route itself was driven 5 times and the results compared against regulation boundary conditions.

scholarly journals Tyre Weights an Overlooked Diffuse Source of Lead and Antimony to Road Runoff

2020 ◽  
Vol 12 (17) ◽  
pp. 6790
Author(s):  
Matthew Taylor ◽  
Niklas Kruger
Keyword(s):  
Urban Areas ◽  
Motor Vehicle ◽  
Environmentally Benign ◽  
Motor Vehicles ◽  
Traffic Density ◽  
Road Runoff ◽  
Diffuse Source ◽  
The Road ◽  
Roadside Dust ◽  
On The Road

Lead (Pb) remains elevated in road runoff and roadside dust, which has been attributed to legacy lead in surface soils from leaded petrol. However, “lead” tyre weights, an alloy of 95% Pb and 5% Sb, may be a relatively unrecognised diffuse source of Pb and Sb as they are still used in many countries. An unknown number of these weights drop off tyre rims and deposit on the road where they are abraded and dispersed, potentially causing adverse environmental effects. The type, number and weight of tyre weights lost from motor vehicles were characterised for a range of roading infrastructures and motor vehicle intensities in a 38 month long study of a 6.9 km length of road in Hamilton City, New Zealand. Overall, 1070 tyre weights with a combined mass of 18.6 kg were collected. About 96.4% of the collected weights were made of “lead”, which is an alloy of 95% Pb and 5% Sb, indicating tyre weights can be a major source of Pb and Sb in urban areas. The tyre weight distribution on roads used in this study depended mainly on traffic density and the prevalence of “start stop” patterns in traffic flow influenced by roundabouts and intersections. “Lead” tyre weights should be phased out and replaced with environmentally benign materials.

scholarly journals Design & Control of Low Cost Solar Tree for Optimizing a PV System

2019 ◽  
Vol 8 (2) ◽  
pp. 5622-5626 ◽  
Keyword(s):  
Urban Areas ◽  
Low Cost ◽  
Point Of View ◽  
Solar Panels ◽  
Pv System ◽  
The Road ◽  
Energy Demands ◽  
On The Road ◽  
Solar Resource ◽  
And Control

This concept shows the design and control of a solar tree PV system for charging cell phones, supplying electricity for street lighting on open urban areas and charging of electric bike on the road side when the charge is decaying. Based on the above applications, a 7 feet height-tree was built. It has three section of branches, each branches contains 5 sub stem over which leaves made of acrylic with solar panels on the top (1.5 feet × 1feet) mounted. The energy storage capacity is 30 Amp. It has 2 USB ports to connect mobile devices and two 12V-300 W electrical outlets to connect those devices to the electricity. The solar tree was designed according to the environmental conditions of Gunupur, Odisha and for optimizing the output power a flow chart with programming developed. The result was compared with the C language programme. At the last, the PV system's availability to satisfy the energetic requirements was verified. Due to population growth and energy demands, the solar energy is the 2nd best source of non conventional energy which is cause pollution free in nature. By using the concept of the series and parallel connection of panel with the help of sub branch of the main stem the efficiency of the system can be improved. As compared to normal PV system in area point of view the Solar tree becomes more efficient. There is no systematic stimulation for usage of solar panels, purely relying on individual cases of installation on different types of objects. Solar tree may be very much helpful for creating awareness about solar resource. This concept elaborates the possibility of building a solar tree in GIET campus odisha, India, covering technical, social and economic aspects. Benefits and potential drawbacks are elaborated, while special emphasis is given to the specifics of its utilization due to the geographical position of odisha and corresponding number of sunny hours/days per year.

Data dissemination for green-VANETs communication: an opportunistic optimization approach

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chandramohan D. ◽  
Ankur Dumka ◽  
Dhilipkumar V. ◽  
Jayakumar Loganathan
Keyword(s):  
Traffic Congestion ◽  
Urban Areas ◽  
Data Dissemination ◽  
Optimization Approach ◽  
Content Type ◽  
The Road ◽  
The People ◽  
Road Condition ◽  
Open Issue ◽  
On The Road

Purpose This paper aims to predict the traffic and helps to find a solution. Unpredictable traffic leads more vehicles on the road. The result of which is one of the factors that aggravate traffic congestion. Traffic congestion occurs when the available transport resources are less when compared to the number of vehicles that share the resource. As the number of vehicles increases the resources become scarce and congestion is more. Design/methodology/approach The population of the urban areas keeps increasing as the people move toward the cities in search of jobs and a better lifestyle. This leads to an increase in the number of vehicles on the road. However, the transport network, which is accessible to the citizens is less when compared to their demand. Findings The demand for resources is higher than the actual capacity of the roads and the streets. There are some circumstances, which will aggravate traffic congestion. The circumstances can be the road condition (pot holes and road repair), accidents and some natural calamities. Originality/value There is a lot of research being done to predict the traffic and model it to find a solution, which will make the condition better. However, still, it is an open issue. The accuracy of the predictions done is less.

We Shall Be Heard

Blue Texas ◽  
2016 ◽  
Author(s):  
Max Krochmal
Keyword(s):  
Civil Rights ◽  
Urban Areas ◽  
Political Power ◽  
Equal Treatment ◽  
The South ◽  
Economic Opportunities ◽  
The Road ◽  
Civil Rights Movements ◽  
On The Road ◽  
The 1960S

This chapter describes the growing demonstrations during the 1960s, as the sit-in movement spreads to Texas. Elder activists join the young in expressing their demands. In less than three years after the first sit-ins, the revived African American civil rights movements would succeed in desegregating public accommodations in urban areas throughout Texas and the South, counting a major coup on the road to their larger goals of equal treatment, improved economic opportunities, and real political power.

Mathematical Models of Vehicular Speed on Mountain Roads

2000 ◽  
Vol 1701 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Pedro Jose Andueza
Keyword(s):  
Mathematical Models ◽  
Design Procedure ◽  
Average Speed ◽  
The Road ◽  
Geometric Conditions ◽  
Sight Distance ◽  
Efficiency Measures ◽  
Vehicular Speed ◽  
On The Road ◽  
Design Speed

Mathematical models were developed to estimate vehicular speed on curves and tangents in mountain roads. The 85th percentile speed for curves was estimated by using the radius of the curve under consideration, the radius of the previous curve, sight distance in the curve, and tangent length before the curve. The average speed was calculated by using the radius of the curve under consideration, the radius of the previous curve, and sight distance. The 85th percentile and the average speed were estimated by using the radius of the previous curve and tangent length. Speeds adopted by drivers respond not to engineer’s design speed but to geometric characteristics of the road. A design procedure is proposed that takes advantage of available design speed and driver behavior on the road at the same time. On a curve, drivers consider two efficiency measures: speed and comfort. On some curves, they prefer to feel a certain degree of discomfort in exchange for obtaining greater speeds. For some geometric conditions, drivers adopt a speed that sacrifices not only comfort but also safety.

scholarly journals A Framework to Reduce Road Congestion by means of Data Analytics

2021 ◽  
Vol 4 (1) ◽  
pp. 287-297
Author(s):  
Anosha Arooj Yousaf ◽  
Najia Saher ◽  
Faisal Shahzad ◽  
Sara Fareed
Keyword(s):  
Traffic Congestion ◽  
Urban Areas ◽  
Data Analytics ◽  
Road Traffic ◽  
Image Data ◽  
The Road ◽  
Road Planning ◽  
On The Road ◽  
Critical Traffic ◽  
Processing Techniques

The density of vehicles on the road especially in urban areas keeps on increasing to large amount day by day. Especially during the peak hours of the day, large amount of people wastes much of their time in traffic signals. Not only they waste energy by burning excess fuel and releasing CO2 emissions in the environment as well as their time and money. An idea has been proposed to monitor the traffic congestion by means of data analytics on image data and solve the critical traffic congestion issue. The CCTV or surveillance cameras installed at the top points on the roads acts as a medium to provide image data as an input to analyze road traffic congestion by counting the number of vehicles under specified interval of time. Monitoring of traffic congestion using image processing techniques is very useful for the future urban road planning such as: 1) if there is a need to make the road wider, 2) if there is a need to add more lanes on the road, 3) if there is need to make flyover or a bridge to control the traffic on the roads. It will help municipalities to structure and expansion of the roads.

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