Mimarlık Fakültesi

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Citation - WoS: 11
Citation - Scopus: 11
Building Sector Emission Reduction Assessment From a Developing European Economy: a Bottom-Up Modelling Approach
(Elsevier Sci Ltd, 2023) Sarica, Kemal; Harputlugil, Gulsu U.; Inaner, Gulfem; Kollugil, Esin Tetik
In this study, as a developing European economy, the Turkish building sector is assessed for potential CO2 emission reduction with a bottom-up modelling framework with a time horizon starting from 2015 until 2050. Three emission mitigation policies are studied for their emission reduction potentials, namely, increasing the usage rate of energy-efficient appliances, improving the energy performance of the building envelope in existing buildings, and increasing the use of energy-efficient heating and cooling systems. Based on these potentials, three emission reduction scenarios for 5%, 10%, and 21% compared to reference cases are designed and implemented. It is shown that much higher energy savings levels, 6%, 12%, and 28%, are achieved. It has been found that the cost-effectiveness of emission reduction scenarios depends on the policy mix as well as the future emission intensity of the electrical energy consumed, which can reduce the cost of mitigation down to the range of 100-200 USD/tonne CO2.
Citation - WoS: 5
Citation - Scopus: 6
Locational Attributes of the Lodging Industry: an Empirical Study on Urban Hotels in Ankara, Turkey
(Elsevier Sci Ltd, 2023) Orhan, Ezgi
Providing temporary accommodation for visitors, hotels usually make permanent location choices as a strategic managerial decision. This study is shaped around the research question of how urban hotels appreciate their locational attributes considering their operationality. By this way, it is aimed at establishing the location de-cisions of urban hotels, and the interaction between their spatial distribution and urban space. A structured questionnaire was conveyed to a sample of 75 hotels operating in Ankara city to inquire about their locational attributes. Results show that hotels commonly accompany with the business functions and their operability are affected from the urban spatial structure. The analysis provides a basis to discuss the attributes of urban location on the business operations of lodging industry by presenting an empirical assessment, and an insight to both potential entrepreneurs and decision-makers in developing a policy framework for hotel investors' needs, de-mands, and site-specific problems.
Citation - WoS: 10
Citation - Scopus: 13
Perceptual Analysis of the Speech Intelligibility and Soundscape of Multilingual Environments
(Elsevier Sci Ltd, 2019) Kitapci, Kivanc; Galbrun, Laurent
This paper examines the perceived speech intelligibility of English, Polish, Arabic, and Mandarin and, more generally, the soundscape associated to multilingual environments. Listening tests were used to evaluate three acoustic environments (an airport, a hospital, and a caf) under three room acoustic conditions defined by a different speech transmission index (STI) (STI = 0.4, 0.5 and 0.6). In the tests, participants rated eleven semantic attributes representative of speech perception and the overall soundscape (speech intelligibility, speech level, speech pleasantness, noisiness, annoyance, relaxation, comfort, environment pleasantness, eventfulness, excitement, and familiarity). Results obtained indicate that inter-language comparisons based on perceived speech intelligibility are different from those obtained from objective speech intelligibility tests. Noticeably, English participants were found to be most sensitive to changes in room acoustic conditions and to meaningful and distractive noise sources, whilst Arab participants were least sensitive to changes in room acoustic conditions and more tolerant to noise. Perceived speech intelligibility correlated significantly with non-acoustical factors (speech pleasantness, comfort and environment pleasantness), and 'emotional factors' (annoyance, relaxation, comfort and environment pleasantness) explained a large portion of the variance in soundscape assessment. Results also showed that language affected the perceived speech intelligibility marginally (p = 0.051) and noisiness significantly (p = 0.047), the latter being the best indicator of cultural variations amongst the attributes tested. Overall, the study shows that designing for speech intelligibility cannot be solely based on room acoustic parameters, especially in the case of multi-lingual environments. (C) 2019 Elsevier Ltd. All rights reserved.
Citation - WoS: 14
Citation - Scopus: 16
Spatial and Temporal Modeling of Parcel-Level Land Dynamics
(Elsevier Sci Ltd, 2017) Tepe, Emre; Guldmann, Jean-Michel
Neighborhood and historical conditions are important factors in land dynamics. However, models that explicitly incorporate spatial and temporal dependencies face challenges in data availability, methodology and computation. In this research, parcel-level dynamics are investigated using the geocoded Auditor's tax database for Delaware County, Ohio, including 73,560 parcels over the period 1990-2012. A binary spatio-temporal autologistic model (STARM), incorporating space and time and their interactions, is used to investigate parcel-level dynamics. The results show that the model is able capture the impacts of contemporaneous and historical neighborhood conditions around parcels, as well as the effects of other variables such as distances to various facilities and infrastructures, agricultural and residential land-use shares within a half mile radius circle, and population density and growth expectation at the census tract level. (C) 2017 Elsevier Ltd. All rights reserved.
Citation - WoS: 17
Citation - Scopus: 18
Translation of Soundscape Perceptual Attributes From English To Turkish
(Elsevier Sci Ltd, 2023) Yorukoglu, P. N. Dokmeci; Bayrak, O. Turker; Coban, N. Akbulut; Osma, U. B. Ercakmak; Aletta, F.; Oberman, T.; Kang, J.
The International Standard Organization (ISO) published the standard series on soundscape for the identification, data collection and data analysis. However, since all these standards are in English language, the reliable standardized usage in other languages and its applicability is questionable. Thus, this two-staged study aims: i) to determine the Turkish equivalences of the 8 soundscape perceptual attributes that are published in ISO/TS 12913-2:2018 and ISO/TS 12913-3:2019, ii) to analyze if the determined Turkish attributes have concept equivalence to the original ones, and iii) to determine if the translated Turkish scale is reproducible. The first stage involved the translation of the attributes by focus group discussions and finalization by Turkish linguistic experts. As a result, the attributes 'eventful', 'vibrant', 'pleasant', 'calm', 'uneventful', 'monotonous', 'annoying', and 'chaotic' are translated to Turkish as 'hareketli', 'coskulu', 'keyifli', 'sakin', 'duragan', 'tekduze', 'rahatsiz edici', and 'karmasik', respectively. The second stage involves the analysis of reproducibility in terms of inter-rater reliability and conceptual validity. It is found that the Turkish scale is reproducible based on high inter-rater reliability in all attri-butes. Context validity at a conceptual level is analyzed both in terms of the difference between the aver-age scores given to the English attributes and their corresponding Turkish equivalences and the correlation between the English and Turkish scores given to each attribute. The highest difference between the average scores (around 10 points on a slider scale of 0 to 100) is found to be in the translation of 'vibrant' while the lowest correlated one (slightly lower than 0.5) is found in 'chaotic' attribute as in line with literature. Despite this result, when the scores are reduced to 2 dimensions as pleasantness and eventfulness, it is seen that there is a high correlation between the English and Turkish scales. It is considered that the results obtained from this research could act as a base in the future for the establishment of Turkish Standards on soundscape and standardization of the translated and validated Turkish soundscape perceptual attributes and the 'perceived affective quality' scale defined under ISO/TS 12913-2:2018 in English. (c) 2023 Elsevier Ltd. All rights reserved.
Citation - WoS: 8
Citation - Scopus: 7
Urban Hotel Location Determinants: Evidence From Ankara's Hotel Geography
(Elsevier Sci Ltd, 2023) Orhan, Ezgi
This paper argues that urban hotels have different characteristics and make location decisions based on this differentiation, which in turn affect to the urban spatial structure. To this end, the study examines the de-terminants of location choices of hotels and their spatial distribution in Ankara. A sample of 75 hotels operating in Ankara was selected through criterion sampling method and applied a questionnaire to identify their location determinants. Findings suggest that hotels with differentiated characteristics show variations in making their location choice, which leads to a shift in gravity of the city and promotes spatial segregation among the central districts of the city. The overall assessment provides evidence on the increasing importance of the new devel-opment districts in hotel locations and the decreasing role of old town in the market competition which ne-cessitates the development of local policies targeting the improvement of central district with the lens of hotel geography. Verification of the hypothesis by the case study will fill the gap in literature that has not yet been addressed in Turkey's cities context in the framework of the planning discipline.

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