AARoads Forum

National Boards => General Highway Talk => Traffic Control => Topic started by: M3019C LPS20 on February 12, 2015, 09:04:28 PM

Title: More 8" heads bite the dust
Post by: M3019C LPS20 on February 12, 2015, 09:04:28 PM
New York City D.O.T. is in the process of upgrading many major thoroughfares in the boroughs from 8" to 12" vehicular heads, which stems to mayor Bill DeBlasio's "Vision Zero" safety project. The intention is to improve the visibility of signal indications, so motorists see them clearly without the risk of accidents.

In Queens, as an example, the thoroughfare Cross Bay Blvd. recently saw this major upgrade. Both directions were affected by the change; however, each cross street at each signalized intersection continues to be controlled by 8" traffic signals. These two below from Howard Beach show the new traffic signals there.

(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi1013.photobucket.com%2Falbums%2Faf258%2FSteven197981%2FIMG_3869_zpsbc0c05e1.jpg&hash=97a196943699dce911f92743796cd43ccaa7dc75)

The speed limit on Cross Bay Blvd. has been mainly 40 M.P.H. for many years, which is also true for other heavily traveled thoroughfares in New York City. So, the new 12" heads are adequate to use.


(https://www.aaroads.com/forum/proxy.php?request=http%3A%2F%2Fi1013.photobucket.com%2Falbums%2Faf258%2FSteven197981%2FIMG_3870-624x467_zps7acb77d6.jpg&hash=ac108436352370cbfba377996857c249c766cf88)

Most of the 12" heads attached to clusters have separations. A separation between the red and amber indication, and this is to provide an adequate clearance level for traffic below. Personally, it is an interesting configuration, and I have seen this in particular elsewhere in the boroughs.



I know most, if not all, of the intersections on Cross Bay Blvd. well, since I remember I traveled on this thoroughfare to visit my grandfather that originally lived in Ozone Park of Queens. Out of all of the intersections there, four originally had 12" heads in use (Belt Pkwy. entrance and exit and S. and N. Conduit Av.). It is sad to see most of the original 8" heads are gone.
Title: Re: More 8" heads bite the dust
Post by: hotdogPi on February 12, 2015, 09:09:51 PM
For those of you with 8" heads (not including hair), beware of NYCDOT!
Title: Re: More 8" heads bite the dust
Post by: KEK Inc. on February 12, 2015, 09:18:31 PM
I was never a fan of 8" installations aside from side-mounted signals. 
Title: Re: More 8" heads bite the dust
Post by: M3019C LPS20 on February 12, 2015, 09:30:29 PM
Quote from: 1 on February 12, 2015, 09:09:51 PM
For those of you with 8" heads (not including hair), beware of NYCDOT!

N.Y.C.D.O.T. has no intention to replace all 8" heads in the near future, mind you. Certain areas that were necessary were taken into consideration, due to the speed limits.
Title: Re: More 8" heads bite the dust
Post by: KEK Inc. on February 12, 2015, 09:51:15 PM
Quote from: M3019C LPS20 on February 12, 2015, 09:30:29 PM
Quote from: 1 on February 12, 2015, 09:09:51 PM
For those of you with 8" heads (not including hair), beware of NYCDOT!

N.Y.C.D.O.T. has no intention to replace all 8" heads in the near future, mind you. Certain areas that were necessary were taken into consideration, due to the speed limits.

Is 35 MPH the magic number in the MUTCD now-a-days?  If so, Seattle is non-compliant.
Title: Re: More 8" heads bite the dust
Post by: M3019C LPS20 on February 12, 2015, 09:59:33 PM
Quote from: KEK Inc. on February 12, 2015, 09:51:15 PM
Quote from: M3019C LPS20 on February 12, 2015, 09:30:29 PM
Quote from: 1 on February 12, 2015, 09:09:51 PM
For those of you with 8" heads (not including hair), beware of NYCDOT!

N.Y.C.D.O.T. has no intention to replace all 8" heads in the near future, mind you. Certain areas that were necessary were taken into consideration, due to the speed limits.

Is 35 MPH the magic number in the MUTCD now-a-days?  If so, Seattle is non-compliant.

Yes.
Title: Re: More 8" heads bite the dust
Post by: Big John on February 12, 2015, 10:07:17 PM
MUTCD allows existing 8" signals to stay in place even if non-complaint with the 12" requirement.
Title: Re: More 8" heads bite the dust
Post by: M3019C LPS20 on February 16, 2015, 05:11:19 AM
After this recent upgrade in Queens, N.Y., I hope to get my hands on a couple of the original 8" heads through some people I know in the signal business.
Title: Re: More 8" heads bite the dust
Post by: mrsman on February 16, 2015, 08:59:12 AM
You know, if safety is the main purpose, they should also consider installing backplates to the signals.
Title: Re: More 8" heads bite the dust
Post by: M3019C LPS20 on February 16, 2015, 09:00:43 AM
Quote from: mrsman on February 16, 2015, 08:59:12 AM
You know, if safety is the main purpose, they should also consider installing backplates to the signals.

Backplates would pose a problem, because most of New York City's traffic signals are in clusters.
Title: Re: More 8" heads bite the dust
Post by: jeffandnicole on February 16, 2015, 09:27:44 AM
Quote from: mrsman on February 16, 2015, 08:59:12 AM
You know, if safety is the main purpose, they should also consider installing backplates to the signals.

Why? In NYC where signals are found nearly every block, along with tall buildings that reduce sun glare, adding backplates are't necessary.  Just because some areas of the country use them doesn't mean they should become mandatory on every traffic light everywhere.
Title: Re: More 8" heads bite the dust
Post by: M3019C LPS20 on February 16, 2015, 09:42:48 AM
Quote from: jeffandnicole on February 16, 2015, 09:27:44 AM
Quote from: mrsman on February 16, 2015, 08:59:12 AM
You know, if safety is the main purpose, they should also consider installing backplates to the signals.

Why? In NYC where signals are found nearly every block, along with tall buildings that reduce sun glare, adding backplates are't necessary.  Just because some areas of the country use them doesn't mean they should become mandatory on every traffic light everywhere.

I think he was referring to the 12" heads in particular. Of course, it would not be necessary to add them to 8" heads there, since the speed limit is primarily 25 M.P.H.