Systems and methods which provide resource utilization management, such as with respect to resources available through one or more accessible resource facilities, are disclosed. Embodiments provide resource utilization management systems and methods which facilitate user controlled reservation, access, and accounting for resource utilization. Resource utilization management systems of embodiments implement an electronic user key based infrastructure to enable access to and accounting for resources, such as resources of one or more accessible resource facility. Embodiments comprise unique tags for each resource for which resource utilization management is provided. A user device, such as a smart phone, personal digital assistant (PDA), or tablet computer, executing a resource utilization management application may be configured to provide a resource key device which is operable to scan the unique tag of a resource for accessing and relinquishing that resource, whether on an ad hoc and/or reservation basis.