Coyotes are deterred by bright light, so anyplace where coyotes are seen, flood lights should be turned on. Anyone who goes walking where coyotes have been seen should carry a flashlight. A 180-degree TripleLite flashlight lights up a whole walkway and will fit into a purse or pocket.
Coyotes were coming into my yard until I found a product called Nite Guard. It is a small red strobe light designed to deter coyotes and other animals and it works like a charm. The parks department should mount these at strategic places around public parks.
Both these lighting products can be found online.
Grace Hampton
Burbank