NavigateLA ( City of Los Angeles, ca) MapServer has 432+ layers.
Department of Public Work, Bureau of Engineering, GIS division maintain these 400+ layers
Official site is here
https://navigatela.lacity.org/navigatela/.
How to use offical navigateLA, youtube tutorial video is here : https://www.youtube.com/watch?v=7sOND8FnGWU
I only want to look LAPD related layer, now you can filter layer on model e2000
https://transparentgov.net/json2tree/arcgis/js4/featurelayer_tree.html?layer_id=-99999&layer=avigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=11&_center_lat=34.02106886643995&_center_long=-118.41176680763678&select_item_id=411&select_item_text=411+%26%23x21E2%3B+LAPD+Bureaus%3Csup+style%3D%22font-size%3A8px%22%3Epolygon%3C%2Fsup%3E&select_item_type=layer
Now you can view these 400 layers with my new model e2000
My model simply provide you the simpliest layer information, not intend to provide you complex function you see in offical NavigateLA site. So my model is not an alternative to origial site.
https://transparentgov.net/json2tree/arcgis/js4/featurelayer_tree.html?layer_id=-99999&layer=avigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=17&_center_lat=34.049039&_center_long=-118.246521&select_item_id=411&select_item_text=LAPD+Divisions&select_item_type=layer
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices&org=Los+Angeles+CA+Public+Works+NavigateLA&_center_lat=34.049039&_center_long=-118.246521&_center_zoom=17&cross=default&timeout=3000&arcgis_online_token=&select_folder=19&select_layer=105
model e1999 allow you select multiple layers
https://transparentgov.net/json2tree/arcgis/js4/featurelayer_tree_multi.html?layer_id=-99999&layer=NavigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=11&_center_lat=34.02106886643995&_center_long=-118.41176680763678&selectedItemIdArray=93%2C94%2C95%2C96%2C97%2C98%2C348%2C349%2C381%2C412
https://transparentgov.net/json2tree/arcgis/js4/featurelayer_tree_multi.html?layer_id=-99999&layer=NavigateLA&url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices%2FMapping%2FNavigateLA%2FMapServer&_center_zoom=15&_center_lat=34.05770522547549&_center_long=-118.45223231403577&selectedItemIdArray=93%2C94%2C95%2C96%2C97%2C98%2C341%2C342%2C343%2C344%2C345%2C348
https://transparentgov.net/json2tree/esri/server2/folder.html?url=https%3A%2F%2Fmaps.lacity.org%2Farcgis%2Frest%2Fservices&org=Los+Angeles+CA+Public+Works+NavigateLA&_center_lat=34.049039&_center_long=-118.246521&_center_zoom=17&cross=default&timeout=3000&arcgis_online_token=&select_folder=19&select_layer=-1