City sustainability: the influence of walkability on built environments

A vital issue in community is providing an easy access to the transport network for different range of community members such as; very young, old, children and disable people. The functions that walking and walkable area can be support includes community involvement, health, meeting and gathering and recreation which has positive effects on sustainability and vice versa. Walkability is the basis of sustainable city. The same as bicycling, walking can be known as ‘green’ type of transportation which except crowding reduction and also has low level of environmental influence, energy conserving without any air and noise pollution. It can be more than a purely useful type of travel to shopping, school and work. Also have both social and recreational importance. This research aims at supporting urban design knowledge and practice and contributing to the broader field of “walkability” by refining the methods and measures used to analyse the relationship between walking behaviour and physical environment and its impacts on city sustainability. In order to integrate knowledge from theories and research on walkability from different fields and of different perspectives, it is crucial to first build a broader view and a more comprehensive understanding of how the built environment influences walking. What has been done during the earlier part of this project, and will be shown in this research, is to provide a better understanding of the complexity of the relationship between the built environment and walking and also the complexity that lies in both of these entities, the urban form and walking activity

How Land Use Shapes the Evolution of Road Networks

The present research develops an agent-based model to treat the organization, growth, and contraction of network elements. The components model travel demand, revenue, cost, and investment. Revenue earned by links in excess of maintenance costs is invested on the link to until all revenue is consumed. After upgrading (or downgrading) each link in the network, the time period is incremented and the whole process is repeated until an equilibrium is reached or it is clear that it cannot be achieved. The model is tested with three alternative land use patterns: uniform, random, and bell-shaped, to test the effects of land use on resulting network patterns. It is found that similar, but not identical, equilibrium hierarchical networks result in all cases, with the bell-shaped network, with a CBD, having higher level roads concentrated in a belt around the CBD, while the other networks are less concentratedSelf-organization, network growth, network evolution, transportation planning, land use planning

Shared Prosperity, Stronger Regions: An Agenda for Rebuilding America's Older Core Cities

Explores opportunities for community collaborations to promote economic development and neighborhood revitalization, and offers strategies for public/private investment. Includes case studies in Baltimore, Cleveland, Detroit, Philadelphia, and Pittsburgh