scholarly journals A VANET Routing Protocol based on the Road Vehicle Density Information in the City Environment

2013 ◽  
Vol 2 (6) ◽  
pp. 253-256
Author(s):  
Hyun Yu ◽  
Sanghyun Ahn
Author(s):  
Amolkirat Singh ◽  
Guneet Saini

Many people lose their life and/or are injured due to accidents or unexpected events taking place on road networks. Besides traffic jams, these accidents generate a tremendous waste of time and fuel. Undoubtedly, if the vehicles are provided with timely and dynamic information related to road traffic conditions, any unexpected events or accidents, the safety and efficiency of the transportation system with respect to time, distance, fuel consumption and environmentally destructive emissions can be improved. In the field of computer and information science, Vehicular Ad hoc Network (VANET) have recently emerged as an effective tool for improving road safety through propagation of warning messages among the vehicles in the network about potential obstacles on the road ahead. VANET is a research area which is in more demand among the researchers, the automobile industries and scientists to discover about the loopholes and advantages of the vehicular networks so that efficient routing algorithms can be developed which can provide reliable and secure communication among the mobile nodes.In this paper, we propose a Groundwork Based Ad hoc On Demand Distance Vector Routing Protocol (GAODV) focus on how the Road Side Units (RSU’s) utilized in the architecture plays an important role for making the communication reliable. In the interval of finding the suitable path from source to destination the packet loss may occur and the delay also is counted if the required packet does not reach the specified destination on time. So to overcome delay, packet loss and to increase throughput GAODV approach is followed. The performance parameters in the GAODV comes out to be much better than computed in the traditional approach.


Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.


Author(s):  
Elizaveta Derevenets ◽  
Elizaveta Derevenets

Gelendzhik is the resort town, there aren't a lot of industrial enterprises here. The main pollutant is transport. The work purpose is the assessment of a condition of the artificial landings of a pine located along the Federal highway "Don" and landings, which is nearly the sea coast. Researches were conducted to a standard technique of the General vital state (A. S. Bogolyubov). The assessment of a condition of pines was carried out during 6 years: from 2010 to 2015. For carrying out research we used 6 experimental grounds on the Markotkhsky spine and 2 control grounds within the town. We investigated 24 trees on each platform, middle age of the trees were 30 - 40 years. Results. 1. The condition of trees in the pine forests located in immediate proximity with the Federal highway "Don" (No. 1, 2, 3) is unsatisfactory. As even weak influences of the majority of atmospheric gaseous pollutants (sulphurous gas, nitrogen oxides, etc.) give effect of a necrosis and hloroz of pine needles, the condition of pines is connected with technogenic pollution. So near the Federal highway "Don" the air environment is strongly polluted by exhaust gases. Information of 2012 confirm that negative influence of the route on Markotkh's vegetation decreases at reduction of load of the route. 2. On the sites located above on a slope (No. 4,5,6) thanks to remoteness and the wind mode intensity of influence of pollutants is lower and a condition of pines the quite satisfactory. 3. Trees on the sites located near the sea (No. 7,8) are in a good shape. Small deterioration of a state is noted in very droughty years. Conclusion. Results of six years' research show that the condition of the plantings which are in close proximity with the road worsens. It is explained by increase in intensity of the movement on the road, especially during a resort season. Gelendzhik is the city with a good ecological shape, but the damage to environment is already caused. If not to take measures, we can lose a unique part of the nature in the future, recreate it will be impossible. Measures of reduction of negative impact of exhaust gases were offered. Results of researches are transferred to ecological department of the City administration of Gelendzhik.


2021 ◽  
Vol 13 (12) ◽  
pp. 2329
Author(s):  
Elżbieta Macioszek ◽  
Agata Kurek

Continuous, automatic measurements of road traffic volume allow the obtaining of information on daily, weekly or seasonal fluctuations in road traffic volume. They are the basis for calculating the annual average daily traffic volume, obtaining information about the relevant traffic volume, or calculating indicators for converting traffic volume from short-term measurements to average daily traffic volume. The covid-19 pandemic has contributed to extensive social and economic anomalies worldwide. In addition to the health consequences, the impact on travel behavior on the transport network was also sudden, extensive, and unpredictable. Changes in the transport behavior resulted in different values of traffic volume on the road and street network than before. The article presents road traffic volume analysis in the city before and during the restrictions related to covid-19. Selected traffic characteristics were compared for 2019 and 2020. This analysis made it possible to characterize the daily, weekly and annual variability of traffic volume in 2019 and 2020. Moreover, the article attempts to estimate daily traffic patterns at particular stages of the pandemic. These types of patterns were also constructed for the weeks in 2019 corresponding to these stages of the pandemic. Daily traffic volume distributions in 2020 were compared with the corresponding ones in 2019. The obtained results may be useful in terms of planning operational and strategic activities in the field of traffic management in the city and management in subsequent stages of a pandemic or subsequent pandemics.


2014 ◽  
Vol 23 (5) ◽  
pp. 567-585
Author(s):  
Muhammad Masood Rafi ◽  
Ashar Hashmat Lodi ◽  
Muhammad Arsalan Effendi

Purpose – Road traffic crashes (RTCs) result in creating significant social and economic hazard for affectees, their families and society. The purpose of this paper is to present studies which were conducted to study the patterns of RTCs in Karachi which is a metropolitan city of Pakistan. The studies were conducted on one of the busiest roads in the city named as Shara-e-Faisal. The influence and contribution of different factors in RTCs has been studied and hazardous road sections of Shara-e-Faisal have been identified. Based on the data analysis, an evaluation model has been suggested to reduce the hazard of RTCs on Shara-e-Faisal. The objective of the presented studies is to increase the present level of safety of road travel by reducing crashes on Shara-e-Faisal. Design/methodology/approach – Existing data of RTCs in Karachi have been analysed for the presented studies. For this purpose, Shara-e-Faisal was divided in sections of 1 km length to study the vehicle crash pattern. Location surveys were conducted to record physical conditions of this road. A cluster analysis was carried out to identify hazardous sections of the road. An evaluation model has been suggested in the end to reduce the hazard of RTCs by identifying hazardous road sections of Shara-e-Faisal. Findings – The analysis of the data revealed that the crashes were higher over weekend and on Monday. Male population, particularly young people, and motorcycle riders were the largest affectees of RTCs. In general, more daytime crashes were recorded as compared to nighttime crashes. The crashes in the mid block of the road and those involving rear-end collisions were higher. The hazardous road locations were related to poor road conditions. Statistical analysis indicated that alternate routes were required to reduce the RTC hazard on Shara-e-Faisal. Research limitations/implications – The paper is a small, but an original, contribution to identify a potential hazard which is faced by the community in the city. This is the first attempt (to the best of authors’ knowledge) to address the issue of RTCs in Karachi from an engineering view point. Practical implications – The suggested model can be employed by the authorities as a guideline to mitigate the hazard of road crashes in the country. Originality/value – The paper provides valuable information on the road traffic incidents, their pattern and contributing factors in one of the largest metropolis of Pakistan. The suggested model can become helpful in reducing RTCs in Pakistan.


1873 ◽  
Vol 6 (1) ◽  
pp. 142-164
Author(s):  
A. R. Fuller
Keyword(s):  
The Road ◽  
The Hill ◽  

On the 3rd of Ramazán, I left Ramlah, and went to a village called Khátún, and from thence to another, which they styled Kariatu-l-'Anab (Grape hamlet). On the road I observed plenty of wild rue growing spontaneously on hill and dale. I also noticed at this village a very delightful spring of water gushing out of a rock, where they had constructed reservoirs, and built edifices. From thence I proceeded up some rising ground, under the impression that I was ascending a hill, and that on going down the other side the city would lie before me. After I had climbed the ascent however for a short way, a vast wilderness lay in my front, partly stony, and partly showing merely the bare earth. At the summit of the hill stands the city of the “Baitu-l-Mukaddas” (Sacred Tabernacle, i.e. Jerusalem), between which and Tarábulis, whichis on the coast, are 56 parasangs, and from Balkh to Jerusalem 876.


2018 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
Supiyono, Dwi Ratnaningsih, Rudy Ariyanto

Abstract Highway in Malang there that needs to be analyzed is Intersections Letjend S. Parman Street – Ciliwung Street and Letjend Sutoyo Street – Letjend Selorejo. The road is an arterial road in the city of Malang with a high vehicle density level (Saputra, 2013). The Street was a high traffic flow led to queues or long saturated flow that is not supported by the settings of the light signals in accordance with the conditions in the field so often causes congestion. From finding a solution the traffic density in the study Letjend S Parman Street – Ciliwung Street and Letjend Sutoyo Street – Letjend Selorejo with Indonesia Highway Capasity Manual (IHCM). After stages 3-signal coordination calculation in Ciliwung Intersection of Malang, Intersection obtained time peak hours at the intersection area occurred at 11.00 – 12.00 GMT. Performance 3-waay junction on the Ciliwung Malang at this time has not met the target. Seen from there is still a Degree of Saturation (DS) which do not meet the targets ( ≤ 0,75), namely 0,83. After having don e engineering into 3 phases and cycle time 100 minutes Degree of Saturation (DS) be 0,77. Keywords: intersection, peak hours, capacity and degree saturation


Jurnal Zona ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 64-74
Author(s):  
Muhammad Yevizal ◽  
Aras Mulyadi ◽  
Ferry Fatnanta

Completion of the transportation problems in the city of Pekanbaru currently only looked at in terms of congestion, but not touching insights from environmental aspects such as performance air pollution and noise levels. This research was conducted at the observation point road ahead Repair Tambusai lord Eastern Daihatshu, road Tuanku Tambusai West Side Mall SKA, North Soekarno Hatta street front retail outlets, street front Soekarno Hatta South Hotel Ibis Pekanbaru. V / C Ratio highest in the afternoon rush hour on the road ahead Tambusai lord Stations Daihatsu ie 0.86 pelyanan road performance E. Quality Standard ambient NOx emissions do not exceed the threshold of ambient quality standards, the NOx emission = 281.76 mg/m3. Quality Standard ambient CO emissions do not exceed the threshold of ambient quality standards, namely emission = 7456.79 mg/m3, the noise level over the limit of noise that is 71.41 dB (A). To balance the load reduction in pollutant emissions and noise levels at the flyover plan with the plan of special bus lane traffic volume assumptions have to move 25% of the transfer of the road users of private vehicles and motorbikes switch to using mass public transport vehicles ie Trans Metro bus Pekanbaru.


Hawwa ◽  
2021 ◽  
pp. 1-59
Author(s):  
Joy A. Land

Abstract Based on rarely viewed images from the fin de siècle, this article will contribute to the burgeoning field of Jewish women in the world of Islam. At the Alliance Israélite Universelle (AIU) School for Girls in the city of Tunis, 1882–1914, after a seven-year course of study, Jewish and non-Jewish girls acquired certification of their academic or vocational skills through a certificate or diploma of couture. Such credentials, according to Bourdieu (1986), constitute “cultural capital.” Furthermore, “cultural capital … is convertible … into economic capital and may be institutionalized in the forms of educational qualifications.” A young woman could create cultural capital and transform it into economic capital through employment. Reading the sources, the influence of the Tunisian Muslim woman on the Jewess becomes apparent. Moreover, cultural capital could afford the Jewish female wage earner increased economic independence and social mobility, as she journeyed on the road to modernity.


Sign in / Sign up

Export Citation Format

Share Document