Let’s talk speed bumps in subdivisions

[onrway]

Hawaii Island criteria for speed humps

The current criteria used for approving speed hump installations include:

Residential local road;
Posted speed limit not exceeding 25 mph;
Overall street grade not exceeding 13%;
Average daily traffic (ADT) between 200 and 3,000 vehicles per day;
85th percentile speed over the posted speed limit;
Minimum 67% support of the adjacent property owners and 100% support of the property owners with a speed hump in front of their property;
Support of the installation by the HPD and HFD; and
Traffic study and design performed by the Department of Public Works.

[kalakoa]

The current criteria used for approving speed hump installations include:

Missing from the list: family includes at least one County worker who brings their buddies down to install speed humps. This really happens, there are some "regulation" speed humps which were installed despite meeting NONE of the published criteria. Even DPW was surprised to hear about the installation.

[onrway]

That’s the same nepotistic thing that is happening in Leilani Estates. The association board is giving preference to speed bumps for board members streets instead of replacing damaged roads to isolated properties which would allow displaced residents to return to their homes. Seams they should check their priorities, or perhaps they already have.

[kalakoa]

the same nepotistic thing that is happening in Leilani Estates

Those are "privately owned" roads, County doesn't care what happens.

The big priorities are: naming Fissure 8 and doing whatever the Mauna Kea protestors demand of us and our tax dollars -- clearly these issues are far more important than who gets to enjoy speed humps.