Skip to main content
. 2021 Feb 8;18(4):1594. doi: 10.3390/ijerph18041594

Figure 2.

Figure 2

Figure 2

Definitions for twelve types of basic road networks. (a): Type 1 Road Network, (b): Type 2 Road Network, (c): Type 3 Road Network, (d): Type 4 Road Network, (e): Type 5 Road Network, (f): Type 6 Road Network, (g): Type 7 Road Network, (h): Type 8 Road Network, (i): Type 9 Road Network, (j): Type 10 Road Network, (k): Type 11 Road Network, (l): Type 12 Road Network.