I believe roads within a precinct (non-strata titled) is public. However, i am not sure if a member of public insist on entering the development.. what is the legal position?
you will have to write in and lodge a complain with the Johor Bahru Tengah government office on why you want to access that road. Unlikely anybody would want to complain bcz most of the time they don't have a valid reason. The road in one precinct doesn't block the access road to any other places.
And it has to reach certain volume of complaints before the council will entertain the complain and take action.
From the legal perspective, some bros here are right about "Government do have the rights to tear down the fencing, including the guard house if too many complaints are received and they are deemed valid."
Hope that clarifies...