SDPs should gather and analyse evidence to identify the key drivers of change, the ability to accommodate change, and test different spatial growth concepts/options.
Dylai Cynlluniau Datblygu Strategol gasglu a dadansoddi tystiolaeth i nodi prif ysgogwyr newid, y gallu i ddarparu ar gyfer newid, a phrofi gwahanol gysyniadau/opsiynau twf gofodol.