<Li> First, is that on average the people living the closest to these business districts have more money to spend locally because they don't spend as much on their cars . </Li> <Li> Second, because these people rely more on bicycling, walking and transit than on driving, they tend to focus more of their commerce on locally owned neighborhood businesses that are convenient for them to reach . </Li> <P> Walkability is a measure of how friendly an area is to walking . Walkability has many health, environmental, and economic benefits . However, evaluating walkability is challenging because it requires the consideration of many subjective factors . Factors influencing walkability include the presence or absence and quality of footpaths, sidewalks or other pedestrian right - of - ways, traffic and road conditions, land use patterns, building accessibility, and safety, among others . Walkability is an important concept in sustainable urban design . </P>

What is suburban sprawl and what invention contributed to the increase of sprawl