The Regional Transportation Commission (RTC) of Clark County, Nevada, is responsible for planning and coordinating the major transportation projects for the greater Las Vegas area. The local entities and utility agencies as infrastructure providers have major construction projects that involve and impact regional transportation. Through the Utility Coordination Subcommittee, the RTC provides a forum for each entity to be informed of each other's projects in an effort to minimize construction costs and impacts on regional transportation and the general public. Ineffective coordinations of these major construction projects have large impacts such as extra costs, regional transportation congestion, and inconvenience to the general public. Project conflicts arise from spatial and temporal issues. Spatial, or locational, project conflicts cause problems with traffic congestion when several major street arteries have projects proceeding at the same time in the same general area. Temporal, or time, conflict causes problems with unnecessary costs and prolonged traffic disruption. These problems and extra costs can be minimized or eliminated through effective coordination of all the transportation-related projects.