From my counties local developement plan
These settlements are the lowest tier in the settlement hierarchy and comprise of cluster of developments where public wastewater and / or public water infrastructure is currently not provided. These nodes contain important services including schools and community facilities supporting the surrounding rural area. Rural nodes are designated for small scale limited development at a sustainable scale for immediate local need including one-off housing for persons who comply with the local need criteria, local services, small scale employment and community facilities. The Council will support high quality designed development on appropriate sites in rural nodes subject to proper planning considerations and the environmental carrying capacity of the area.
In effect, it is saying that because the infrastructure is not in place, developement will be restricted.
Plan then lists 8 or 9 such nodes