Bumpingame - Part 2 - Non-standard speed bumps hurt

I've recently become aware of a Change.org petition about the speed bumps/humps on Carmelita Ave.  We addressed some of the issues on the first Bumpingame post here.  Three months later the irritation has not lessened.  What we didn't know at the time was the design of the bumps is non-standard because they are too steep.  The petition is more specific stating:

Regrettably, these speed bumps do not follow state and federal standards.  They create vehicle problems, passenger discomfort and negative impacts on ambulance and critical emergency response.  The standard speed hump that abides by state and federal stds is at least 12' long, going up 6' on the first half, and then ramping back down over 6'.  This is similar to the design that is on Hillside Dr in the hills.  Those follow standards.  They are shaped like a parabola.  The ones on Carmelita are shaped like a sharp trapezoid, ramping up sharply over 2' (instead of 6') and then back down 2' on the back end.  That is why you really feel it going over it.

If you want to get into the design flaws in more detail, here are a couple of resources:

• State Dept of Transportation Traffic Calming Guide, p 62
• https://dot.ca.gov/-/media/dot-media/programs/safety-programs/documents/traffic-calming/final-traffic-calming-guide_v2-a11y.pdf
• CA MUTCD – California Manual on Uniform Traffic Control Devices
• https://dot.ca.gov/-/media/dot-media/programs/safety-programs/documents/ca-mutcd/rev8/camutcd2014-chap3-rev8-a11y.pdf

Please read (and sign) the full petition aimed at the City Council and asking for fixing the problem.  It's found here.

Comments

[Peter Garrison]

Also on lower Adeline Drive next to Mercy Center!

Winding street, parked cars and cramped roadway due to the speed bumps.

[Spurinna]

If you take them at 25mph straight on, the bump evens out…

[Big Rob]

On Howard, East side between Dwight and Humboldt we have the modern version of the Fremont Drag Strip ( of the old days) and would love ANYTHING that slowed traffic, legal or not. But alas, nothing and never a speed trap. 30 years in our house and it is beyond obvious that the East side is just a pass through for all types. School has started and I worry about the kids and families.

[A.Beez]

The speed bumps were a terrible idea. Listening to the cars going over those bumps all day long has not been enjoyable.

If they want to slow down traffic, they should put in stop signs.