The links below provide additional information on this treatment.
December 2019 ITE Journal Article "Advisory Bike Lanes and Shoulders: Current Status and Future Possibilities"
List of North American ELRs
2019 NCHRP Edge Lane Roads Problem Statement
2019 AASHTO Research Needs Statement
2019 Ottawa Evaluation of Somerset ABL
September 2018 ITE Journal Article "Solving the Challenge of Non-Motorized Infrastructure Using Advisory Bike Lanes"
Overview - Current Status and Path Forward on ELRs
Review of Oregon State Vehicle Code for ELR-Related Issues
2018 TRB Research Needs Statement on ELRs
Video of an Older Presentation on Advisory Bike lanes: Transportation Research and Education Center (TREC) Seminar
"Lessons Learned: Advisory Bike Lanes in North America" - an early white paper
Appendices to "Lessons Learned" White Paper just above - good info on other facilities and design features
Paper "Advisory Bicycle Lanes - Reality versus Design Guidance"
Paper "Sight Distance for Advisory Bicycle Lanes"
Draft Paper "A Comparison of Advisory Bike Lanes to Bicycle Boulevards, Bicycle Lanes and Yield Roadways using Level of Traffic Stress - An Application of LTS to ABLs"
FHWA Small Town and Rural Multimodal Networks guide which includes the Advisory Shoulder treatment
Excerpt from 2016 CROW manual describing edge lane roads
Photo courtesy of Scott Robinson at City of Bloomington, IN.