Some of them, or straight lines connecting the centers of the circles, would be identified with pipelines, electricity, data, materials, water, waste, ie all utility lines.
Baadhi yao, au mistari iliyonyooka kuunganisha vituo ya duru, itakuwa kutambuliwa na mabomba ya kitu chochote, umeme, data, vifaa, maji taka, yaani mistari yote ya shirika.