The majority of urban pollution is traffic related and often shows daily variations with peaks occurring at rush hours. Poor outdoor air quality can affect the IAQ of local buildings that ventilate with polluted air. This is particularly applicable to buildings where AHU air intakes are at low level and adjacent to busy roads. The effect of pollution peaks can be minimized by ventilation control and this paper presents potential control techniques for periods when outdoor air quality is poor.

Providing Quality for People has many aspects. Of these, one is providing buildings that give clients and users better value for their money. Another addresses the issues of preserving our heritage upon which our quality of life based. This paper describes how these can be achieved using the application of innovative design concepts supported by advanced analytical techniques. For the majority of archive repositories, storing as they do paper type material, environmental conditions of 60±5% and 15.5±2.5 °C are recommended by British Standard 5454.

A thermal simulation model and suitable weather data were used to generate design curves for the application of night ventilation cooling to office buildings. The work was carried out under the programme of the International Energy Agency (IEA) Annex 28 on 'Low Energy Cooling'. The generated curves show the potential reduction in internal peak day temperatures throughout the cooling season, the free cooling provided by night ventilation and the number of hours that a fan would run during the night for mechanical systems to achieve this free cooling.

Finding a solution to the problem of draughty buildings can be fraught with difficulty. Very often only the symptoms are apparent and the root cause can be difficult to identify. All too often a 'try and see' approach is adopted until finally, if luck prevails, a successful solution is found. The design team addressing the problem of a draughty mall at a shopping centre in Shrewsbury adopted a different approach. The possible causes were identified using site knowledge and Computational Fluid Dynamics. A 'blind' analysis of site data was then undertaken by an independent statistician ie.

During the past three years, BRE has conducted winter and summer occupant surveys on satisfaction with environmental conditions in 23 buildings. These were a mixture of naturally ventilated and air conditioned buildings. The results presented in this paper are based on a secondary analysis of 5136 completed questionnaires. The aim of the analysis was to determine the effect of ventilation type and season on occupant satisfaction with key environmental parameters: thermal sensation, thermal comfort, humidity, air movement, stuffiness, air quality, lighting and noise.

In recent years there has been a gradual re-emergence of the use of passive or 'low energy' ventilation and cooling techniques including mixed mode application. It is apparent that many clients developers and agents are reluctant to make a commitment to such 'low energy' buildings due to concerns, albeit unsubstantiated by hard evidence, that such buildings will provide acceptable comfort levels for occupants.

This paper proposes a definition of integrated design in order to improve use and understanding of the term and the concept throughout the construction industry. In particular, the paper considers the topic from an energy efficiency perspective as this plays a central role in design. The definition is supported by a discussion on the design process, and developing a design strategy. This is based on work carried out in editing the CIBSE Guide: Energy efficiency in buildings that will be published in the future.