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Ladd-Lincoln-Harrison Greenway Project

The following are the notes presented during the 2017-11-13 RNA General Meeting
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KEY LINKS

Vision:
Create network of safe greenways so that people from 8-80 can safely get from-to anywhere in the city by walking, running, skateboarding, or biking
Current Definition - https://www.portlandoregon.gov/transportation/50518
Streets with low traffic volume and speed where bicycles, pedestrians and neighbors are given priority.
Greenway 101
https://www.portlandoregon.gov/transportation/article/554110
Greenways are not cut-through streets
- Vehicles should travel 20 mph or less
- There should be a daily average of approximately 1,000 cars per day with the upper limit set at 2,000 cars
- There should be ample opportunities for people bicycling and walking to cross busy streets, at least 50 crossing opportunities per hour, with 100 crossing opportunities per hour the preferred level of service.
Current greenway map

The neighborhood greenways with the highest bicycle traffic volumes (as of 2013) are, in order:
- SE Lincoln-Harrison (4,230 daily bicycle trips on Harrison at Ladd);
- SE Clinton-Woodward (2,870 daily bicycle trips on Clinton at 26th);
- Burnside Corridor Bikeway (2,115 daily bicycle trips on Ankeny at 28th);
- NE Going Street Bikeway (1,920 daily bicycle trips on Going at 9th);
Cycling mode-share for our neighborhood:

General idea is to keep cars from traveling along greenways for extended stretches

Here’s what we came up with during the Land Use & Transportation Committee Meeting…

Unique streets should have unique solutions
Diversion that is frequent enough that no single side street sees most of the diverted traffic, and so speed bumps are not needed.
Connect with other greenways
Seasonal flexibility
No speed bumps on greenways
Do not divert traffic into side streets
Good, clear directional signage

You might notice there's differing—and sometimes conflicting—opinions on the best solutions.

First we need to take a look at what streets are designated by PBOT for cars, and which are considered Local Service streets:

Source: portlandmaps.com » Gallery » Transportation » Transportation System Plan Classifications

Here’s another way to look at our neighborhood streets.

Blue streets are non-neighborhood collector streets that connect at least 2 neighborhood collectors.

Here’s the scope for the Ladd-Harrison-Lincoln Greenway

Here’s how they monitor traffic.

You can determine not only vehicle counts, but direction, speed, acceleration, and types of vehicles.

Here’s the data they found:
Traffic Volumes

Anything not-green is bad and out of spec for a Greenway.

Vehicle Speeds

Anything not-green is bad and out of spec for a Greenway.

Key Tool to Control Volume:
Diverters

Key Tool to Control Speed:
Speedbumps

Specifically, here’s the current proposed diverters and locations:

Ones Richmond can comment on: 30th & Lincoln and 50th & Lincoln
Others are outside of our neighborhood

PBOT Detail View of Proposed Diverter at Lincoln & 50th

PBOT Detail View of Proposed Diverter at Lincoln & 30th

Here’s the top ideas we came up with during the Land Use & Transportation Committee Meeting…

You might notice there's differing—and sometimes conflicting—opinions on the best solutions.

Open meeting floor for discussion

Talk to the city at the remaining open houses (see key links above)