M. Ghalehnoee, A. Ghaffari, N. Mohsen-Haghighi,
Volume 28, Issue 2 (12-2018)
Abstract
Sound as a non-visual component of landscape, has a significant impact on individuals perception of space. Because unlike the landscape that seeing and looking is totally an optional action, soundscape regardless of people comes to be heard and understood. Lack of attention to quality of emitted sounds in the environment may leads to problems such as noise pollution, lack of concentration, noise annoyance, disturbance and lack of privacy in people conversation in the urban spaces. A qualitative- quantitative assessment of soundscape is essential. In this regard, Naghsh-e-Jahan square in Isfahan, Iran as an urban space needs to be studied. The aim of this study was to evaluate the physical indicators of soundscape in Naghsh-e-Jahan square and to discover people perception of sounds. For this, questionnaire (n=385) was used. Indicators of LAeq and Ldenwere evaluated via St-8851 sound level meter. Field sound metering (429 points with 10 meters intervals near to the walls in depth of 2 and around the fountains and 20 meters intervals in the interior space) has done. In order to complete coverage of noise events and acoustic condition three temporal frameworks; day time (07-19), evening (19-22), night (22-07) were selected. All the field studies were in winter of 2016. Collected data entered into the GIS map and noise maps produced. Results of questionnaires showed that the most unpleasant sounds were motorcycle and cars and gharries and most pleasant sounds were water sound. Results showed that in some points such as around the central fountain, entrance of Qeysariyeh Bazar, loop between Sepah and Hafez St. and pass of carriages, and the mean overall Lden is higher than standard levels of noise in urban spaces 55 dB (A) and need to be controlled and reduces up to stand.
Nooshin Abbasi, Nima Valibeig,
Volume 33, Issue 1 (3-2023)
Abstract
One of the most famous historical squares of Iran is the Naghsh-e Jahan Complex, of which many studies have been done about its features and its effects on the urban space of Isfahan. The measurement of the geometric system governing the physical structure of this complex is considered an important part, of which no comprehensive research has ever been conducted. Accordingly, this study, aiming at analyzing the impact of the geometric organization and its order on the structure of the Square, and in particular on the location of its multiple accesses, seeks to evaluate this topic by using the relative measuring system based on the geometric rules as a process for the regularization of the space. The relative measurement system is one of the first ones, resulting in the application of geometry to the physical structure of the city and architecture. Its valuable benefits can be the application of dimensions and sizes with the identified coefficients in the cited plan. The present study is classified in the category of historical research, and descriptive and exploratory methods have been used in the historical research. Also, research on library data has provided the basis for analyzing the geometric structure of the Square and its dependent buildings. The research question can be formulated as follows: What is the relationship between the location of multiple entrances to the Naghsh-e Jahan square and its geometric system? The research findings indicate that the structure of the Naghsh-e Jahan Complex is following a geometric system with relative lengths based on the square shape, so the accesses location and the organization of the peripheral elements have all been subject to the mentioned system. Also, the results emphasize the benefit of a continuous process in planning the structure of the recent urban space, including its components, and considering it based on rational and inferential thinking, which, according to the geometric rules, is forming the hidden and revealed relations between the elements of the Safavid city.
