Table 1.

The activity code and percentage of the land use parcels in the three cities in this study

Activity Code	Land Use Category	Boston	Chicago	San Diego
1	Residential	92.65%	74.15%	78.91%
2	Hotel/Resort	0.04%	0.12%	0.48%
3	Mixed use	0.80%	12.36%	3.31%
4	K-12 Schools	0.10%	0.79%	0.67%
5	University/College	0.11%	0.15%	0.06%
6	Office/Workplace	1.36%	2.71%	3.90%
7	Services	0.56%	0.50%	0.89%
8	Civic/Religious	0.26%	1.91%	1.15%
9	Shopping/Retail	0.99%	0.07%	2.76%
10	Recreation/Entertainment	0.66%	0.85%	2.46%
11	Transportation	0.55%	3.49%	1.21%
12	Others	1.94%	2.90%	4.18%
Total number of parcels		1,117,027	164,619	108,148