Based on the constructed layers of spatio-temporal overlap, we
calculated the percentage of development in each period and each
zone in terms of conformance and nonconformance to the original
plan. We were thus able to compare actual land-use development
during 1980–2000 to those outlined in DOP3 and to estimate to
what extent DOP3/21, the new plan that replaced DOP3 in 2002,
regulated this development.