1.2.2

Widens school attendance zones and lands airport arrivals downtown.

Attendance zones → 5 / 8 / 12 miles

Catchments were 3/5/8 km, which is tight for South Carolina — districts here are county-wide and rural zones run long. They are now 5 miles for primary, 8 for middle and 12 for high schools.

	1.2.1	1.2.2
residence nodes feeding a median school	26	40
Summerville High feeders	122	213
nodes sending >100% of their residents to school	19	9
95th percentile	81%	74%
school trip p50 / p90	2.9 / 9.2 km	7.1 / 16.3 km

Airport arrivals now reach the peninsula

Arrivals previously dispersed by gravity from the airport, which put most of them in North Charleston — it's 3 km away, and no distance decay is going to favour a peninsula 15 km off.

Arrivals now split. Thirty per cent still disperse: residents coming home, people staying with family, business trips to the North Charleston office parks. The other 70% are visitors heading for a hotel, and 70% of those go to the downtown peninsula. Weighting them by room count alone would have sent only 37% downtown, because the airport strip and North Charleston hold a lot of rooms serving business and Boeing traffic, while leisure visitors flying into Charleston overwhelmingly stay on the peninsula.

76% of hotel-bound arrivals now land on the peninsula, and 54% of all arrivals.

Demand totals 607,276 across 2,361 points and 67,890 pops. Map files are unchanged from 1.2.0.