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2025

To Lead or be Exclusive... for Pedestrians at a Traffic Signaloriginal ↗
10 Jul 2025
Response to: Traffic Engineers Are Wasting Trillions and what we need to do about itoriginal ↗
25 Jun 2025
Bicycle signing/markings and traffic signals on the ITE Communityoriginal ↗
6 May 2025

2024

Killed by a Traffic Engineer - Book Revieworiginal ↗
10 Jun 2024

2023

New MUTCD and the Safe Systems Approachoriginal ↗
20 Dec 2023
Response to America Has No Transportation Engineersoriginal ↗
24 Jan 2023

2019

incorporating walking and biking into Traffic Impact Studiesoriginal ↗
11 Apr 2019

2017

Understanding Dutch Design by Visiting Rijswijk, a suburb of The Hagueoriginal ↗
10 Jul 2017
PSU Study Abroad Visit to Gemeente Delftoriginal ↗
10 Jul 2017

2015

rEvolving Transportationoriginal ↗
18 Nov 2015
NACTO 2015 Conference in Austin, TXoriginal ↗
1 Nov 2015
History of Traffic Signals in Portlandoriginal ↗
7 Aug 2015
A Vision Zero Community: Houtenoriginal ↗
15 Jul 2015
Bicycle Oreinted Development: Case Study in Houtenoriginal ↗
15 Jul 2015
Returning to Bicycle Heaven - Houten and South Houtenoriginal ↗
15 Jul 2015
Cycling in the Netherlands by Mark Wagenbuur @BicycleDutchoriginal ↗
13 Jul 2015
What do Advocates Do? Jeff Rosenblum, Livable Streetsoriginal ↗
13 Jul 2015
5 Misconceptions in Transportation by Jeff Rosenblum - Livable Streetsoriginal ↗
13 Jul 2015
Left Turn Options at Traffic Signalsoriginal ↗
9 Jul 2015
Rainbow Crosswalk in Utrechtoriginal ↗
8 Jul 2015
Bike Box in Delft on Wateringsevest at Noordeindeoriginal ↗
8 Jul 2015
Delft Bicycle Parking Garageoriginal ↗
8 Jul 2015
Bio for Peter Koonce - Updated to 2015original ↗
7 May 2015
Media Quoting What I said in a Webinaroriginal ↗
29 Mar 2015
Clearance Intervals: How Long should a Yellow and Red be?original ↗
12 Mar 2015
Sub/Urban & Transportation Related Songsoriginal ↗
21 Feb 2015
Power & Importance of Research #TRBAMoriginal ↗
11 Jan 2015
Comments from Professionals Against Changing the MUTCDoriginal ↗
11 Jan 2015
TRB Annual Meeting 2015 papersoriginal ↗
11 Jan 2015
NCUTCD Bicycle Technical Committee Reviews Two Stage Queue Boxoriginal ↗
9 Jan 2015

2014

Year in Review 2014 edition - in the Mediaoriginal ↗
30 Dec 2014
Bicycle Signals Recommended for Inclusion in next MUTCDoriginal ↗
28 Jun 2014
Flexibility in Designing Bicycle Infrastructureoriginal ↗
27 Jun 2014
Advisory Bike Lanes and the Request to Experiment in Minneapolis - APBP Sharing Information Successfullyoriginal ↗
27 Jun 2014
Old Infrastructure in Minneapolis tells our story - Save the Highway Trust Fund?original ↗
27 Jun 2014
Improving the MUTCD by Proposing Language Modifications - Bicycle Detector Symbol Markingoriginal ↗
25 Jun 2014
Spacing of Bicycle Shared Lane Markings - NACTO and MUTCDoriginal ↗
25 Jun 2014
Bicycle Signals in the MUTCDoriginal ↗
25 Jun 2014
Rapid Flashing Beacon Research shows Yielding Rates at 80%original ↗
25 Jun 2014
Introduction on the MUTCD and Thoughts on Uniformity for the APBPoriginal ↗
25 Jun 2014
Bikeshare Minneapolis: Nice Rideoriginal ↗
25 Jun 2014
1st Avenue North Cycletrack in Downtown Minneapolisoriginal ↗
24 Jun 2014
Not Street Seats, but Sidewalk Standing Bar in Minneapolisoriginal ↗
24 Jun 2014
A Bicycle Boulevard of Minneapolisoriginal ↗
24 Jun 2014
Midtown Greenway Rail to Trail - Minneapolis, MNoriginal ↗
24 Jun 2014
NCUTCD Meeting in Minnesotaoriginal ↗
24 Jun 2014
Chicago Street Seats and Bike Share Station Integration?original ↗
20 Jun 2014
Potholes of Chicagooriginal ↗
20 Jun 2014
Bike Traffic Signal Design - NACTO Urban Bikeway Design Guide Research Meeting (Chicago, IL)original ↗
20 Jun 2014
Chicago Bikeway Tour - Initial Takeways & Lessons Learnedoriginal ↗
19 Jun 2014
NYC Mixing Zone Conceptsoriginal ↗
19 Jun 2014
Invisible Urbanism - 7 ideas from Portlandoriginal ↗
9 Jun 2014
What we need to move Transportation forwardoriginal ↗
3 Jun 2014
Bicycle Detection Confirmation "Blue" Lightoriginal ↗
10 Apr 2014
LED Street Lighting in Portlandoriginal ↗
3 Mar 2014
Speed Limits in Cities - ITE Listerv Discussion with Sam Schwartzoriginal ↗
23 Feb 2014
Troubleshooting Traffic Signals with Arrowsoriginal ↗
23 Feb 2014
Peter Koonce Biooriginal ↗
15 Feb 2014
Detecting bicycles at traffic signals studyoriginal ↗
11 Feb 2014
NACTO Urban Street Design Guide Webinar, presented by APBPoriginal ↗
24 Jan 2014
What does the Signal Timing described in the NACTO Urban Street Design Guide look like?original ↗
24 Jan 2014
Flashing Yellow Arrows for Protected Permitted Left Turnsoriginal ↗
23 Jan 2014
NACTO Urban Street Design Guide Write up on Left Turn Phasingoriginal ↗
23 Jan 2014
Traffic Signal Systems Committee Meeting Agendaoriginal ↗
6 Jan 2014

2013

Accomplishments Related to Bicycles in Portlandoriginal ↗
28 Nov 2013
Design Details for People on Bicyclesoriginal ↗
11 Oct 2013
Signal Timing Manual, 2nd Edition editing - Benefits of short cycle lengthsoriginal ↗
29 Sept 2013
Walk + Bike to School Day Flyeroriginal ↗
24 Sept 2013
Serious Cargo Bikes in Beijingoriginal ↗
24 Sept 2013
BATS in Portland?original ↗
17 Sept 2013
NACTO Urban Street Design Guide at TRB annual Meeting in 2014 - UPDATED and Moved to the AM Session on Sundayoriginal ↗
17 Sept 2013
Hong Kong Pedestrian and Bicycle Infrastructureoriginal ↗
17 Sept 2013
Bikes & Cars in Bejing Chinaoriginal ↗
30 Aug 2013
E-Bikes for Freight in the Forbidden City Beijing Chinaoriginal ↗
30 Aug 2013
Flying Piegon Bikes in Beijing along the Hutongoriginal ↗
30 Aug 2013
Pedestrian Countdown Signal Crossing in Beijingoriginal ↗
30 Aug 2013
Adaptive Control vs. Time of Day Signal Timing Plansoriginal ↗
21 Aug 2013
Hong Kong NW Territory Cycling Infrastructureoriginal ↗
20 Aug 2013
Shenzhen Traffic Management Center Touroriginal ↗
20 Aug 2013
Tour of the Shenzhen Traffic Management Centeroriginal ↗
20 Aug 2013
Visit to China to speak at Universities and the CICTP2013 conferenceoriginal ↗
19 Aug 2013
High Speed Rail from Hong Kong to Guangzhouoriginal ↗
13 Aug 2013
Traffic Crashes in Portland and Enforcement - A City's Responseoriginal ↗
7 Aug 2013
TRB Papers submitted this yearoriginal ↗
1 Aug 2013
First TRB Paper - 15 years agooriginal ↗
1 Aug 2013
Vehicular Cycling Debateoriginal ↗
27 Jul 2013
Are Traffic Signals Bad? The Bikeportland "debate"original ↗
24 Jul 2013
Multiple Lane Transition with a Green Bike Boxoriginal ↗
21 Jul 2013
Traffic Signal Systems Committee Meeting in Portlandoriginal ↗
21 Jul 2013
Detecting Bicycles at Traffic Signals Signoriginal ↗
20 Jul 2013
Detection of Bicycles at Traffic Signals in Bostonoriginal ↗
20 Jul 2013
Bike Rental "Share" in Portland Maineoriginal ↗
11 Jul 2013
Signal Timing Progression Speeds in Downtownoriginal ↗
4 Jul 2013
Bicycle Turn Lane at Brookline & Beacon in Bostonoriginal ↗
2 Jul 2013
Boston's Old State House & State Street Subway Station Pedestrian Scrambleoriginal ↗
29 Jun 2013
Traffic Operations Benefits of a Bike Box - SE Madison & Grand Example (Modified Bike Box)original ↗
27 Jun 2013
Bicycle Signals Discussion at the NCUTCD Meetingoriginal ↗
27 Jun 2013
Traffic Control Devices on the East Coast Greenway Trailoriginal ↗
27 Jun 2013
Impressions from Boston's Highway 28 - Bikes May Use Full Laneoriginal ↗
26 Jun 2013
How far is too far to walk to a traffic signal or beacon?original ↗
25 Jun 2013
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