signals

New signal on NE Lloyd gives bike riders a jump on other traffic

Avatar by on October 3rd, 2012 at 11:09 am

New bike only signal at MLK and Lloyd-3

The new signal makes it easier for this person to merge left over two lanes of traffic.
(Photos © J. Maus/BikePortland)

The Bureau of Transportation (PBOT) activated a bike-only signal yesterday at the northwest intersection of NE Lloyd Blvd and Martin Luther King Jr. Blvd.[Read more…]

PBOT experiments with ‘intelligent’ new indicator light

Avatar by on June 20th, 2012 at 10:43 am

Signal aids and innovation-8

One smart light.
(Photos © J. Maus/BikePortland)

One unsung area where Portland is doing some very cool stuff for bicycling is with traffic signals and “ITS” — which stands for Intelligent Transportation Systems. The field of ITS encompasses all sorts of high-tech ways to make our streets smarter. From sensing vehicle patterns with RFID, to software that manages complex signal systems.

Around Portland, some of the most innovative examples of traffic engineering fall under this category. ITS is how PBOT managed to improve bike access on the NE 12th overcrossing without upsetting nearby freight-dependent businesses. It’s also how they dealt with the notorious right hooks on Broadway at Williams (with bike-only signals).[Read more…]

How to make that light turn green

Avatar by on December 8th, 2006 at 7:52 pm

A traffic signal technician at PDOT just released a really cool document titled, “Vehicle Detection: Or, Getting a Green Light on a Bicycle at an Intersection.”

Here’s an excerpt from the, “How we mark for bicycle detection” section:
[Read more…]