Attitudes about urbanism are changing as people embrace the social, cultural, environmental and financial benefits of more urban lifestyles. Even in the still relatively young frontier cities of the western United States, urbanism is on the rise. Photo: Soren Simonsen When planning does not consider fully the implications of design, development, and transportation systems as interrelated elements of a city, the results can be devastating. Photo: Soren Simonsen Effective urban design increasingly requires a collaborative approach that integrates planning, engineering, design and development to create vibrant and habitable 21st century communities. photo: Soren Simonsen A well-planned and integrated city nurtures