An advanced Gaussian-type trajectory model to evaluate the evacuation zone at Nuclear Power Plant 4 in Taiwan.
Mean land area of Taiwan in becoming the permanent evacuation zone is 11%.
The probabilities of the northern counties/cities to be PEZs are high, ranging from 30% in Taoyuan County to 51% in Keelung City.
Both the largest PEZ and EPZ are occurred during September to April when NE prevailing wind dominates.