To Use or Not To Use: A survey questionnaire on the integration of day lighting simulation tools in the design process

2019 ◽  
pp. 67-74
Author(s):  
Dalia Hafiz ◽  
Keyword(s):  
Design Process ◽  
Survey Questionnaire ◽  
Simulation Tools ◽  
Lighting Simulation

scholarly journals The Implementation of Visual Comfort Evaluation in the Evidence-Based Design Process Using Lighting Simulation

2021 ◽  
Vol 11 (11) ◽  
pp. 4982
Author(s):  
Anahita Davoodi ◽  
Peter Johansson ◽  
Myriam Aries
Keyword(s):  
Performance Metrics ◽  
Analysis Data ◽  
Evidence Based ◽  
Visual Comfort ◽  
Simulation Tools ◽  
Post Occupancy Evaluation ◽  
Lighting Simulation ◽  
Insight Into

Validation of the EBD-SIM (evidence-based design-simulation) framework, a conceptual framework developed to integrate the use of lighting simulation in the EBD process, suggested that EBD’s post-occupancy evaluation (POE) should be conducted more frequently. A follow-up field study was designed for subjective–objective results implementation in the EBD process using lighting simulation tools. In this real-time case study, the visual comfort of the occupants was evaluated. The visual comfort analysis data were collected via simulations and questionnaires for subjective visual comfort perceptions. The follow-up study, conducted in June, confirmed the results of the original study, conducted in October, but additionally found correlations with annual performance metrics. This study shows that, at least for the variables related to daylight, a POE needs to be conducted at different times of the year to obtain a more comprehensive insight into the users’ perception of the lit environment.

Simulation and analysis of the effects of room surface reflectance combinations on a proposed retrofit illumination system of an office

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Subarna Roy ◽  
Sudipta Majumder ◽  
Sourin Bhattacharya ◽  
Imran Hossain Sardar
Keyword(s):  
Likert Scale ◽  
Surface Reflectance ◽  
Survey Questionnaire ◽  
Content Type ◽  
Scale Type ◽  
Illumination System ◽  
Office Space ◽  
Strong Linear Correlation ◽  
Lighting Simulation ◽  
Strongly Agree

Purpose An indoor office space should not only provide adequate illuminance on horizontal planes but also cater to the physiological and psychological requirements of the occupants. This paper aims to describe a lighting simulation-based work conducted in Kolkata, India which modeled an indoor office to investigate the effects of variation in room surface reflectance combinations on user perception, mean room surface exitance (MRSE), average horizontal illuminance and overall uniformity of horizontal illuminance. Design/methodology/approach A fluorescent illumination system–based office space was modeled and retrofitted with tubular LED lamps in DIALux. Simulations were conducted for 16 different room surface reflectance combinations and a five-point Likert scale-type survey questionnaire was formulated to conduct a survey with 32 test subjects to assess the subjective preferability of each resultant light scene. Findings Simulation results demonstrate that the relationship between average horizontal illuminance and MRSE as well as between average horizontal illuminance and overall uniformity of horizontal illuminance, was statistically significant (p < 0.001). In the conducted survey, the resultant light scene arising out of the reflectance combination of wall:ceiling:floor = 60%:90%:20% was the most well-received one with 187 convinced agreements (“agree” and “strongly agree” responses). Originality/value This work found strong linear correlation between average horizontal illuminance and MRSE and between average horizontal illuminance and overall uniformity. A five-point Likert scale-type survey questionnaire with seven questions was formulated and validated with 32 test subjects (Cronbach’s alpha > 0.9295), which showed that the wall:ceiling:floor reflectance combination of 60%:90%:20% was the most favored choice.

Target Cascading: A Design Process for Achieving Vehicle Ride and Handling Targets

2001 ◽  
Author(s):  
D. Geoff Rideout ◽  
Jeffrey L. Stein ◽  
John B. Ferris
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Vehicle Design ◽  
Design Strategies ◽  
Tire Pressure ◽  
Simulation Tools ◽  
Performance Targets ◽  
Overall Design ◽  
Target Cascading ◽  
Ride And Handling

Abstract Vehicle dynamics are well understood by both academic researchers and automotive industries. And while modeling and simulation tools are still underutilized, they are becoming more frequently used in the vehicle design process. However, there is still lacking an overall design methodology that can link and integrate in a systematic fashion the design tasks of individual components or systems such that the vehicle performs as intended with a minimal number of design iterations. A process called Target Cascading, applied in the early stages of vehicle design, might serve as this systematic design methodology. In this paper, Target Cascading is evaluated for its ability to propagate top-level design specifications down to specifications for various subsystems and components in a vehicle design problem. More specifically, general ride and handling targets are set for a vehicle and these are cascaded down through the suspension, tire pressure and spring design levels by partitioning the original problem into a hierarchical set of subproblems. At a given level, an optimization problem is formulated to minimize deviations from the proposed targets and thus achieve intersystem compatibility. A coordination strategy links all subproblem decisions so that the overall supersystem performance targets are met. Results are presented that demonstrate Target Cascading’s utility in unearthing tradeoffs and incompatibilities among initial targets early in the vehicle development cycle. Throughout the paper, the Target Cascading process is compared to traditional vehicle design strategies for achieving ride and handling targets. Target Cascading appears to be a promising systematic technique for the design of vehicles to meet ride and handling specifications.

A framework for implementing integrated project delivery in architecture design firms in Egypt

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ayman Ahmed Ezzat Othman ◽  
Lamis Yasser Wagih Youssef
Keyword(s):  
Literature Review ◽  
Case Studies ◽  
Design Process ◽  
Project Delivery ◽  
Architecture Design ◽  
Survey Questionnaire ◽  
Integrated Project Delivery ◽  
Content Type ◽  
Integrated Project ◽  
Design Firms

Purpose This paper aims to develop a framework for implementing the integrated project delivery (IPD) approach during the design process in architecture design firms (ADFs) in Egypt. Design/methodology/approach A research methodology consists of literature review, case studies and survey questionnaire was designed to achieve the abovementioned aim. First, literature review was used to identify and categorise the challenges of implementing IPD during the design process. Second, four case studies were analysed to investigate the values delivered to the client or missed due to the use of IPD or traditional procurement approaches, respectively. Finally, a survey questionnaire was carried out with a representative sample of ADFs in Egypt to investigate their perception towards the challenges of IPD implementation in Egypt. Based on the results of the above, the research developed a framework to facilitate the implementation of IPD in ADFs in Egypt. Findings Through literature review, the research identified 30 challenges that hamper the implementation of IPD in ADFs. These challenges were categorised due to their nature into five groups, namely, integration, cooperation, commitment and trust challenges, knowledge, experience skills and decision-making challenges, cultural challenges, legal and contractual challenges and technical and financial challenges. Results of data analysis showed that “poor communication and spirit of collaboration between project stakeholders” was ranked the highest influential challenge as IPD is based on collaboration and trust between project participants. In addition, “lack of training and motivation in investing for using IPD” was ranked the lowest influential challenge due to the poor attention paid to training in the construction industry. Moreover, despite the benefits of IPD implementations in many countries worldwide, it is not implemented in the Egyptian context. This necessitated taking action towards developing a framework to facilitate IPD implementation in ADFs in Egypt. Research limitations/implications The research focussed on ADFs in Egypt. Practical implications Adopting the proposed framework developed through this research will help implementing IPD during the design process in ADFs. Originality/value The research identified, categorised and analysed the challenges that obstruct the implementation of IPD in ADFs. The research tackled a topic that received scant attention in construction literature in the Middle East generally and Egypt in particular. In addition, this paper presented a framework to facilitate the implementation of IPD during the design process, which represents a synthesis that is novel and creative in thought and adds value to the knowledge in a manner that has not previously occurred.

scholarly journals Synthesizing test Reference Year files from known climate patterns of nearby cities

2019 ◽  
Vol 10 ◽  
pp. e019030
Author(s):  
José Aderson Araújo Passos Filho ◽  
Bruno de Payva y Raviolo ◽  
Natasha Catunda ◽  
Nayana Helena Barbosa de Castro ◽  
Karoline Cordeiro de Andrade ◽  
...  
Keyword(s):  
Design Process ◽  
Vegetation Cover ◽  
Environmental Variables ◽  
Building Simulation ◽  
Weather Data ◽  
Urban Centers ◽  
Simulation Tools ◽  
Use Of Data ◽  
Climate Patterns ◽  
Estimation Of Missing Data

The importance of an architecture adapted to its climatic context is often debated. In order to avoid future unexpected environmental behavior or failure of a building during its use, building simulation tools are used in the design and require complete and consistent weather data. However, such data are not always available for the locations where buildings are simulated, and the use of data from neighboring cities becomes usual. There are, though, several uncertainties involved in the behavior of environmental variables when the climate of large urban centers is attributed to nearby localities and areas with more significant vegetation cover, water bodies, different topography, among others. The present paper aims to present the process of preparing a weather file for the Pecém Industrial and Port Complex, located at 40 km from the capital Fortaleza, Brazil, in order to be used in simulations during the design process of buildings. The synthesis of the file was achieved through the collection and treatment of information measured in loco, the application of recommended models for the estimation of missing data, and the development of an alternative method for the estimation of a Test Reference Year of localities without weather data of several years.

scholarly journals Review of spectral lighting simulation tools for non-image- forming effects of light

2021 ◽  
Vol 2042 (1) ◽  
pp. 012122
Author(s):  
M Gkaintatzi-Masouti ◽  
J van Duijnhoven ◽  
M P J Aarts
Keyword(s):  
Building Design ◽  
Lighting Design ◽  
Light Sources ◽  
Visual Comfort ◽  
Review Of Literature ◽  
Simulation Tools ◽  
Current State ◽  
Health Related ◽  
Lighting Simulation ◽  
User Friendly

Abstract Light via our eyes influences visual performance, visual comfort and visual experience, but also affects several health related, non-image-forming (NIF) responses. New metrics have been developed to quantify the NIF effects of light. In order to incorporate these in lighting design practice, simulation tools are required that are able to process information about the spectral distribution of light sources and materials. However, most of the tools currently used for daylight and electric light simulations simplify the spectrum into RGB (Red, Green, Blue) colour values. This paper presents an overview of the currently used programs for simulating the NIF effects of light in building design and discusses the possibility of using existing spectral rendering software as an alternative. A review of literature shows that mostly Radiance or Radiance-based programs have been used so far, but new user-friendly tools could employ existing spectral rendering tools. As the NIF effects of light gain greater importance in lighting design, new simulation workflows are needed. This paper aims to support the development of future workflows by presenting the current state-of-the-art.

scholarly journals A framework for achieving sustainability by overcoming the challenges of the construction supply chain during the design process

2021 ◽  
Vol 13 (1) ◽  
pp. 2391-2415
Author(s):  
Ayman Ahmed Ezzat Othman ◽  
Nooran AlNassar
Keyword(s):  
Supply Chain ◽  
Design Process ◽  
Life Cycle Cost ◽  
Construction Projects ◽  
Architectural Design ◽  
Survey Questionnaire ◽  
Skills Gap ◽  
Importance Index ◽  
Design Firms ◽  
Whole Life Cycle

Abstract This paper aims to develop a framework to achieve sustainability by overcoming the challenges of the construction supply chain (CCSC) during the design process. To achieve this, two approaches, namely theoretical and practical, were used to accomplish four objectives. For the theoretical approach, based on literature review and case studies, the objective used was to identify, classify and validate the challenges that the construction supply chain (CSC) encounter. For the practical approach, a survey questionnaire was employed to quantify the CCSC and investigate the perception of architectural design firms (ADFs) in Egypt towards achieving sustainability by overcoming the CCSC during the design process. Based on the results, the research developed a framework to overcome the CCSC as an approach towards achieving sustainability in construction projects during the design process. The research identified and validated 20 challenges that the CSC encounter towards achieving sustainability during the design process. These challenges were classified under four categories, namely (1) design and technical process; (2) coordination, information flow and accuracy; (3) material specification, technology, supplier rework and whole life cycle cost; and (4) skills gap of the qualified architects and design managers and non-compliance to building codes, regulations, laws and standards. In addition, a survey questionnaire was employed to rank these challenges according to their importance on 1–5 Likert scale using the measure of central tendency and dispersion and relative importance index (RII).

scholarly journals Visualization and Analysis of Lighting Design Alternatives in Simulation Software

2017 ◽  
Vol 869 ◽  
pp. 212-225 ◽  
Author(s):  
Diana Fernandez-Prieto ◽  
Hans Hagen
Keyword(s):  
Design Process ◽  
Lighting Design ◽  
Simulation Software ◽  
Test Case ◽  
Interactive Exploration ◽  
Software Packages ◽  
Design Alternatives ◽  
Lighting Simulation ◽  
Simulation Results ◽  
Visualization Techniques

For decades, multiple lighting simulation software packages and plugins for commercial software have been developed in an effort to ease the usage and integration of simulation into the lighting design process. In this effort, one of the main challenges is to provide lighting designers with an easy and comprehensive access to simulation results. Visualization is used as a means to achieve this goal. In this paper, we explore two of the most used free lighting simulation packages towards the identification of visualization techniques that facilitate the access to the simulation results as well as the identification of opportunities for the enhancement of simulation-assisted lighting design processes. A test case of a metal workshop illustrates the output produced by both software packages. Based on this exploration, we identified an open gap regarding three main aspects: interactive exploration of simulation results, visualization of compliance with lighting standards, and visual comparison of lighting solutions. We provide a discussion on how approaches from other domains can be applied to close this gap.

Sign in / Sign up

Export Citation Format

Share Document