The document discusses factors that influence quality of life and access to services. It can be classified into three categories: environmental, economic, and social influences. The document then discusses what types of services would be expected in a central business district (CBD) and who would have the best access to these services. It explains that access can be measured by travel time and frequency of visits. Factors affecting access to CBD services include personal factors, environmental factors, and features of the services. Having good access to CBD services can improve quality of life by allowing people to pay better prices, buy luxury goods, socialize, spend time in the CBD, and have a better choice of goods.