Portland Bike Rider Performance Study Ryan Conrad, Nikki Wheeler, Dr. Miguel Figliozzi

1. Objective: to determine the mean speed of bicycles through intersections while investigating factors that may have an impact on speed. The results will be compared with the ASHTO recommended speed for bicycles. Methodology: How we will collect data? In general, we will collect mean speed through instersection (either by video tape, radar gun, or video/speed combo, other). Once we finalize this we can provide a diagram showing where we will take speed…how the setup will look…Expand here.Discuss what we have done to determine what we will use (what were our options, and why did we choose what we did). Explain pilot study and comparison of collection methods (if we do this). For each rider we will note age and gender and any other variables the rider or environment may have that could influence their speed (i.e. clothing, extra load from book bags or trailers, attentiveness). What has Been Done (basically lit review):In general, research is lacking on bicycles. What has been done is limited in the number of factors investigated (age, gender, grade have not been investigated or fully investigated). Also, there is variance in results (UC Davis study determined AASHTO recommended speed to be too fast). Bicycle speed becomes important during signal design when programming the “green time extension” and “clearance time” for bicycles. If the bike speed used is faster than bikers really travel, riders will not safely clear the intersection. However, if the bike speed used is much slower than bikers really travel, then delay increases for the vehicles waiting at the red light. A recommended speed that is representative of the rider population in an area for particular roadway conditions (such as grade) will improve signal designs by increasing safety for bikes and potentially decreasing delay for vehicles. Portland Bike Rider Performance StudyRyan Conrad, Nikki Wheeler, Dr. Miguel Figliozzi Intersection Locations: Show and explain initial intersection locations. Where are they, what kind of grade, what type of rider. Pictures. INSERT INTERSECTION PHOTO 1 INSERT INTERSECTION PHOTO 1 • Factors Influencing Rider Performance: Based on previous research our work will focus on: • Age • Gender • Grade List why we picked this: grade, rider type, etc. List why we picked this: grade, rider type, etc. Analysis: We will look for correlations between our variables….