See Update Below: (5/14/18)
The electronic survey is available on the 102nd Ave website now, as well as the slides shared at the city council meeting.
There is now data from two other projects where travel lanes were reduced from two lanes in each direction to one lane in each direction. On both of these streets, peak hour traffic volumes were similar to the peak hour volumes on NE 102nd Ave. There are two 4-page reports, one for Division St and one for Glisan St. Additionally, there are two slides added to the slideshow online that summarizes how these projects impacted travel times, volumes, speeds and diversion. The big take-away, according to PBOT, is that there was no significant impact to travel time or volumes, but speeds did drop.
For travel speeds southbound on 102nd Ave at Shaver- PBOT collected speeds using percentiles, meaning how many cars are going above a certain speed and how many are going below. For reporting a typical travel speed on a corridor, PBOT usually report 85th percentile speed, which means that 85% of people are traveling at or below that speed and 15% are traveling above that speed. PBOT took traffic counts on 102nd at Shaver starting on Wed, 11/15/17 at 2pm through Fri, 11/17/17 at noon. The summary numbers are averages over the 24 hour cycle.
– 85th percentile speed: 42 MPH
– 65.4% of drivers are going over the posted speed of 35 MPH
– 10% of drivers are going faster than 43 MPH
– 16 drivers were going 57 MPH or faster
– At the PM peak (4-6pm), most drivers were driving between 33 and 41 MPH)
Additionally, use the following link to receive updates to project and send feedback: