In the work I do I often need various pieces of geographically-based information concerning public roadways and public transportation. It seems to me (and please correct me if I'm wrong) that this data is particularly decentralized. For example, the National Network of highways and associated map/gis data for determining trucking routes is available from various state governments but not from others although the network itself is subject to federal regulations and funding.
Several cities have public transportation station location available via the Cities section of Data.gov. This data is qualified by data.gov:
Datasets from participating cities are not federal government data and not subject to the Data.gov Data Policy. Each city maintains its own data policy.
The Milwaukee County Transit System ("MCTS"), operated by Milwaukee Transport Services ("MTS"), on behalf of Milwaukee County Wisconsin ("County"), hereby grants you ("Licensee") a non-exclusive, limited and revocable license to reproduce, display, perform, redistribute and otherwise use transit route schedules, pricing and other associated data ("Data") subject to the following terms...
My questions are:
- Are there 'minimum requirements' that must be met for the openness of such data?