scholarly journals NOISE EMISSION CAUSED BY TRANSPORT IN TRAKAI CITY MODELLING AND EVALUATION / TRANSPORTO SUKELIAMO TRIUKŠMO SKLAIDOS TRAKŲ MIESTE MODELIAVIMAS IR VERTINIMAS

2016 ◽  
Vol 8 (4) ◽  
pp. 431-437
Author(s):  
Tomas Vilniškis ◽  
Tomas Januševičius

One of the biggest problem in most cities – noise emissions in the environment caused by transport. It is found that environment noise can cause not only discomfort, but it is also harmful to health. Therefore, noise emissions in the environment is topical environmental problem. In this article the vehicle noise emissions are evaluated, depending on traffic in Trakai city. At selected locations in the northern and southern parts of the city equivalent and maximum noise levels are measured. According to estimates of traffic day, evening and night, using CadnaA program, noise maps are simulated. The noise map will show noise emissions day, evening and night. Measurement have shown, that maximum noise values was near main roads. In the south of the city, near Gediminas street, equivalent sound level during daytime was 60 dB, evening 54 dB, night – 48 dB. In the north of the city, near Karaimai street equivalent sound lever during daytime was 59 dB, evening – 54 dB, night – 51 dB. The simulations generated sound level values were similar to measured, the differences between the simulated and measured values were up to 4 dB. Viena didžiausių problemų miestuose – tai vis didėjančių transporto srautų sukeliamas triukšmas ir jo sklaida aplinkoje. Yra nustatyta, kad aplinkos triukšmas gali sukelti ne tik nepatogumų, tačiau ir kenkti sveikatai. Todėl triukšmo sklaida aplinkoje yra aktuali aplinkosaugos problema. Šiame straipsnyje vertinama transporto triukšmo sklaida, atsižvelgiant į transporto srautus Trakų mieste. Parinktose vietose šiaurinėje ir pietinėje miesto dalyse yra išmatuojami ekvivalentiniai ir didžiausieji garso lygiai. Pagal apskaičiuotus transporto srautus dienos, vakaro ir nakties metu, naudojant CadnaA programą, sudaromas triukšmo sklaidos žemėlapis. Žemėlapiuose pavaizduota triukšmo sklaida dienos, vakaro ir nakties metu. Atlikus matavimus, buvo nustatyta, jog didžiausios triukšmo vertės yra prie pagrindinių kelių. Pietinėje miesto dalyje, šalia Gedimino gatvės, ekvivalentinis garso lygis dienos metu siekia 60 dB, vakaro – 54 dB, nakties – 48 dB. Šiaurinėje miesto dalyje didžiausi triukšmo lygiai buvo prie Karaimų gatvės, kur ekvivalentinis garso lygis dienos metu siekė 59 dB, vakaro metu buvo 54 dB, nakties metu 51 dB. Atlikus modeliavimą, gautos garso lygio vertės buvo panašios kaip ir išmatuotos, skirtumai tarp sumodeliuotų ir išmatuotų verčių buvo iki 4 dB.

2020 ◽  
Author(s):  
Mayra R. Tocto-Erazo ◽  
Daniel Olmos-Liceaga ◽  
José A. Montoya

AbstractThe human movement plays an important rol in the spread of infectious diseases. On an urban scale, people move daily to workplaces, schools, among others. Here, we are interested in exploring the effect of the daily local stay on the variations of some characteristics of dengue dynamics such as the transmission rates and local basic reproductive numbers. For this, we use a two-patch mathematical model that explicitly considers that daily mobility of people and real data from the 2010 dengue outbreak in Hermosillo, Mexico. Based on a preliminary cluster analysis, we divide the city into two regions, the south and north sides, which determine each patch of the model. We use a Bayesian approach to estimate the transmission rates and local basic reproductive numbers of some urban mobility scenarios where residents of each patch spend daily the 100% (no human movement between patches), 75% and 50% of their day at their place of residence. For the north side, estimates of transmission rates do not vary and it is more likely that the local basic reproductive number to be greater than one for all three different scenarios. On the contrary, tranmission rates of the south side have more weight in lower values when consider the human movement between patches compared to the uncoupled case. In fact, local basic reproductive numbers less than 1 are not negligible for the south side. If information about commuting is known, this work might be useful to obtain better estimates of some contagion local properties of a patch, such as the basic reproductive number.


2019 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Mine Kuset Bolkaner ◽  
Selda İnançoğlu ◽  
Buket Asilsoy

Urban furniture can be defined as aesthetics and comfort elements that reflect the identity of a city and enable the urban space to become livable. Urban furniture is an important element of the city in order to improve the quality of urban life, to create a comfortable and reliable environment and to meet the needs of the users in the best way. For designing these elements, the social, economic, cultural and architectural structure of the city should be considered and evaluated. It is important to adapt the urban furniture to the urban texture and to the cultural structure achieving an urban identity, in order to ensure the survival and sustainability of the historical environments. In this study, a study was carried out in the context of urban furniture in Nicosia Walled City, which has many architectural cultures with its historical texture. In this context, firstly the concept of urban identity and urban furniture was explained and then, information about urban furniture was given in historical circles with urban furniture samples from different countries. As a field study, a main axis was determined and the streets and squares on this axis were discussed. These areas have been explored starting from Kyrenia Gate in North Nicosia; İnönü Square, Girne Street, Atatürk Square, Arasta Square, Lokmacı Barricade and on the south side Ledra Street and Eleftherias Square. In this context, the existing furniture in the North and South were determined and evaluated in terms of urban identity accordingly. As a result, it can be suggested that the existing street furniture equipments, especially on the north side, do not have any characteristic to emphasize the urban identity. According to the findings, it was determined that the urban furniture in the streets and squares on the north side is generally older and neglected, and does not provide a unity with the environment, whereas on the south side, these elements on the street and square are relatively new, functional and environmentally compatible.Key words: urban furniture, historical environment, urban identity, Nicosia Old City


Belleten ◽  
2017 ◽  
Vol 81 (291) ◽  
pp. 329-372
Author(s):  
Abdullah Mesut Ağır

This study examines the markets in Cairo during the reign of the Mamlūks in the light of al-Makrīzī's Chronicle al-Khitat. Besides those which were built during the Mamlūks era the commercial life were ongoing at the markets dating back to the Fatimids and the Ayyubids periods. The marketplaces generally occupied in al-Qasaba which was between Bāb al-Futūh in the north and Bāb al-Zuwayla in the south was the trading center of the city. Al-Qasaba is al-Mu'izz Street today which takes its name from the Fatimid Caliph al-Mu'izz li-Dinillah (341-364/953-975). The economic and social decline especially seen during the second half of the Mamlūks in the 15th century affected also the domestic markets stability and most of the sûqs disappeared depending on these conditions.


Antiquity ◽  
1943 ◽  
Vol 17 (65) ◽  
pp. 11-18 ◽  
Author(s):  
Colin Matheson

In a previous paper (1) an attempt was made to describe the inter-relations of man and bear in Europe from early times to the present day. In many ways the influence of the wolf has been more important than that of the bear on the habits and thoughts of European man. Occasionally it has figured in a favourable light, as in the case of the she-wolf credited with suckling the twin founders of the City on Seven Hills (though even here the double meaning of lupa—applied in a transferative sense to ladies whose character would not bear close investigation—has led some authors to a conjecture which it might not have been politic to mention to any patriotic inhabitant of the grandeur that was Rome). But in general, whether in Italy or elsewhere, no animal has been so hated and feared. Among the ancient Greeks in the south—whose Lyceum at Athens and sanctuary of Apollo Lukeios at Sicyon may have originated in efforts to propitiate the wolves-as among the Letts of the north who, perhaps as late as the 17th century, sacrificed a goat each December to the wolves so that their other livestock might be spared(2) ; from Scotland where priests offered the prayer, quoted by Fittis (3) from the old Litany of Dunkeld, for deliverance ‘from robbers and caterans, from wolves and all wild beasts’, to Russia where peasants pronounced a spell on St. George's Day with the recurring plea, ‘God grant the wolf may not take our cattle‘ (4); the wolf was the great destroyer, the despoiler of flocks and herds and man's chief enemy in the animal world.


Mnemosyne ◽  
2016 ◽  
Vol 69 (2) ◽  
pp. 202-225
Author(s):  
Sarah Pothecary

A number of places that feature in Strabo’s description of the Asian peninsula were situated on the ancient road that ran between the Euphrates river and the city of Ephesus. It is likely that Strabo journeyed along the entire thousand-kilometre length of the road, even though he makes explicit reference to his presence in only a few locations. He most probably made the journey as a youth on his way to Roman Asia, in the south west of the peninsula, from Pontus in the north. Decades pass before Strabo, as an old man, writes the Geography and includes in it the memories of places he had visited. The outdated tone of some of his descriptions reflects this passage of time.


2017 ◽  
Vol 103 (2) ◽  
pp. 137-151
Author(s):  
Barry Kemp

The spring 2017 season at Amarna focused on excavation at the large pit-grave cemetery adjacent to the North Tombs, the results of which support the suggestion, made after an initial field season in 2015, that this is a cemetery for a labour force involved in building and maintaining the city of Akhetaten. Post-excavation work was also undertaken on pottery from the Stone Village, reliefwork from Kom el-Nana and a new study of burial textiles from the South Tombs Cemetery.


1975 ◽  
Vol 55 (1) ◽  
pp. 11-40 ◽  
Author(s):  
Henry Hurst

SummaryIn the first season of excavation by a British team participating in the UNESCO Save Carthage Project, two sites in the harbour area and one inland were examined. On the site on the island in the circular harbour, the remains probably of the νεώρια described by Appian succeeded earlier Punic occupation periods and were in turn followed by two successive Roman temples and a building, probably a pharos, associated with the second temple. After this, there appears to have been domestic or commercial occupation in the fifth and sixth centuries A.D. On the north shore of the circular harbour, remains of the late Roman quayside and associated streets and buildings were found. On the inland site, situated to the south of the Roman street grid, there were the remains of third–fifth-century and fifth–sixth-century buildings fronting a street and backed by a substantial wall identified as the city wall constructed in the reign of Theodosius II.


2016 ◽  
Vol 2016 ◽  
pp. 1-15 ◽  
Author(s):  
Stjepan Lakušić ◽  
Ivo Haladin ◽  
Maja Ahac

Tram system is a backbone of public transportation in the City of Zagreb. In the last decade, its fleet has been renewed by 142 new low-floor trams. Shortly after their introduction, it was observed that they have a negative impact on the exploitation behavior of tram infrastructure, primarily on the durability of rail fastening systems. Because of that, it was decided to modify existing rail fastening systems to the new track exploitation conditions. When the (re)construction of tram infrastructure is carried out by applying new systems and technologies, it is necessary to take into account their impact on the future propagation of noise and vibration in the environment. This paper gives a short overview of the characteristics of the two newly developed rail fastening systems for Zagreb tram tracks, their application in construction of experimental track section, and performance and comparison of noise and vibration measurements results. Measured data on track vibrations and noise occurring during passage of the tram vehicles is analyzed in terms of track decay rates and equivalent noise levels of passing referent vehicle. Vibroacoustic performance of new fastening systems is evaluated and compared to referent fastening system, in order to investigate their ability to absorb vibration energy induced by tram operation and to reduce noise emission.


Electrum ◽  
2021 ◽  
Vol 28 ◽  
pp. 245-276
Author(s):  
Achim Lichtenberger ◽  
Torben Schreiber ◽  
Mkrtich H. Zardaryan

The paper deals with the first results of the Armenian-German Artaxata Project which was initiated in 2018. The city of Artaxata was founded in the 2nd century BC as the capital of the Artaxiad kingdom. The city stretches over the 13 hills of the Khor Virap heights and the adjacent plain in the Ararat valley. The new project focusses on Hill XIII and the Lower city to the south and the north of it. This area was investigated by magnetic prospections in 2018 and on the basis of its results, in total eleven 5 × 5 m trenches were excavated in 2019. On the eastern part of Hill XIII several structures of possibly domestic function were uncovered. They were laid out according to a regular plan and in total three phases could be determined. According to 14C data, the first phase already dates to the 2nd century BC while the subsequent two phases continue into the 1st/2nd century AD. In the 2019 campaign, the overall layout and exact function of the structures could not be determined and more excavations will be undertaken in the forthcoming years. North of Hill XIII the foundations of piers of an unfinished Roman aqueduct on arches were excavated. This aqueduct is attributed to the period 114–117 AD when Rome in vain tried to establish the Roman province of Armenia with Artaxata being the capital.


2018 ◽  
Vol 16 (1-2) ◽  
Author(s):  
Predrag Ilić ◽  
Dragana Nešković Markić ◽  
Ljiljana Stojanović Bjelić

Noise pollution, as a major environmental problem, is present in Banja Luka. The measured values exceeded the level of noise allowed, which is a great problem. Evaluation of the noise levels was carried out in the streets in the area with health institutions. Objectives of this research were to evaluate the environmental noise pollution in the City of Banja Luka due to traffic noise and to compare the measured noise levels in the city with legislation and to establish the connection between noise and the number of vehicles. Correlation between the noise level and number of vehicles was positive and significant during the study period (r=0.89). It is confirmed that, with the increase of the number of vehicle, the noise level increases, i.e. the decrease in the number of vehicle decreases the noise level.


Sign in / Sign up

Export Citation Format

Share Document