Erroneous road signs

[Dirt Roads]

Oakland Avenue in Crest Hill, IL:  Seem to be a couple additional railroad crossings that are invisible?
Southbound
Northbound

Fascinating.  It looks like the Sealed Corridor application (in this case, soft bollards down the middle stripes with standard flashing light signals and gates) also included these signs as a reminder to folks that have already cleared the crossing not to stop downstream of the crossing such that a car could get trapped on the railroad.  Or otherwise, you might need to [stop, look and listen] for those invisible trains on those invisible tracks with invisible gates.

[Revive 755]

^ I meant to reference the circular warning signs (W10-1) with the No Train Horn plaques.  It's standard practice in Illinois to try to have as many 'Do Not Stop On Tracks' signs as possible at a crossing, even if they start blocking other important devices and/or leading to an overload of signing.  A great example is Euclid Avenue at the UP Northwest Line in Arlington Heights (good luck seeing the arrow indications on the pre-signal).

[Great Lakes Roads]

Marshall, MI- a business route erroneously signed as if I-94 was concurrent with I-69