I think, the”side walk” can be mistaken for a parking lane, as there is a sidewalk along the fence on the Hichey Park side. Clear signage needed.

There's a stone curb and a concrete sidewalk. I don't see how that could be mistaken for a "parking lane". Not to mention that there are signs indicating when and where parking as allowed. As to the "sidewalk" on the park side of the fence, it's s dirt path.

I was wondering why they park on the sidewalk, and how no police have noticed that yet. I see cars parked there every day.

This issue came up in May 2016. At that time the ruling from Sgt Richard Carroll was that this area is not a sidewalk (despite its outward appearances). I was disappointed, but that's how it went: https://seeclickfix.com/issues/2517083-parking-related-issue

Thanks for the clarification, Kevin. I wish it was clearly marked, though. Parking there creates dangerous situations. Some years ago, I witnessed how a cyclist on the road was taken out by a kid on a skateboard that came out of nowhere between the parked cars. Kid was fine, the elderly cyclist however suffered serious injuries and had to be taken to hospital by ambulance.

SGT Charles Hartnett designou esta questão a SGT Charles Hartnett

As discussed in comments, this is not a sidewalk.