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district—calming traffic, reducing carbon and enforcing parking regulations using ITS in a plug-in hybrid electric vehicle with a public charging station, with power supplied by the school.
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contractual and agency employees are directly affected by the planning and engineering decisions made months or years in advance. Maintenance personnel would like to think that planners and engineers think about such issues as lifecycle costs, inventories, training, worker safety, disposal and replacement before decisions are made that would require significant changes in how their work is performed or their budget is affected. In other words, with so much societal focus on energy supply, climate, environment, and air and

Support for use of hybrid, alternative fuel and/or electric vehicles by the public, in terms of provision of preferred parking as well as charging stations in public parking areas. Preferred parking for these vehicles is becoming commonplace. Programs for provision of charging stations are under development in some cities in North America.

Operational initiatives can also support sustainability by minimizing costs for operations of transportation systems. Recent examples include solar-powered pedestrian crosswalk signals, pay-and-display parking stations, streetlighting curfews and dimming applications.

Maintaining What We Have
While planners are looking forward with a focus on long-range issues such as quality of life, development standards and regulatory changes, at the other end of the spectrum are the teams who are responsible for maintaining the built transportation infrastructure. The transportation system requires skilled personnel to work safely in the traveled way while making planned or emergency repairs to pavement surfaces, sidewalks, traffic controls, roadway lighting or other assets. Depending upon the size of the agency, budget and other factors, some maintenance applications will be performed by contract. Daily activities though, such as patching potholes, unplugging a storm drain, or grinding down a sidewalk tripping hazard are usually performed by agency staff. In either case though,
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