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Publication Number: FHWA-HRT-06-125
Date: November 2006

Pedestrian and Bicyclist Intersection Safety Indices

Final Report

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ALTERNATIVE TEXT

Figure 1. Drawing. Hierarchical Order of Safety Measures.

The drawing is of a pyramid with 2 sides visible. Both sides of the pyramid are separated into four horizontal sections. Under the front face of the pyramid is the label "EVENTS." On the front face of the pyramid, the top section reads "Crashes." The second highest section reads "Conflicts." Below "Conflicts" is the section named "Avoidance Maneuvers." The bottom section of the pyramid is labeled "Ratings open parenthesis Based on Expert and/or User Opinion close parenthesis." Under the other visible side is the label "LEVEL OF RISK." The sections of the side face are labeled as follows: "High" for the top section and "Low" for the bottom section. The middle two sections on the side are unmarked.

Figure 2. Drawing. Video Camera Position for Pedestrian Data Collection

The drawing shows the intersection of two two-lane roads, one west to east and the other north to south. The drawing shows a camera on the southeast side of the intersection and a triangular area visible by the camera. Within the viewing area of the camera is a pedestrian crossing the southern part of the intersection heading east. The entire path of the pedestrian is visible to the camera.

Figure 3. Drawing. Video Camera Position for Bicyclist Data Collection.

The drawing shows the intersection of two two-lane roads, one west to east and the other north to south. The drawing shows two cameras placed at the intersection, one on southwest side of the intersection and one on the northeast side, and the viewing areas of the two cameras. The southwest camera is placed far enough west of the intersection to view the entire north-south crosswalk on the west side of the intersection while the northeast camera is placed far enough east of the intersection to view the entire north-south crosswalk on the east side of the intersection. A bicyclist is shown traveling west about to enter the intersection.

Figure 4. Illustration and Video Clip. Illustration for Pedestrian Study

The illustration shows the intersection of two roads, Allegheny and Aramingo. Allegheny runs north-south and Aramingo runs west-east. Allegheny is a four lane road with bike lanes in both directions and parallel on-street parking on both sides of the street. Aramingo is a two lane road with bike lanes in both directions and parallel on-street parking on both sides of the street. There are two cameras positioned along the sidewalk parallel to Allegheny that capture the north-south crosswalk on the west side of the intersection. Camera number 1 is on the west side of Allegheny, several yards north of the intersection. Camera number 2 is on the west side of Allegheny, several yards south of the intersection.

Figure 5. Video Clip. Video Clip for Pedestrian Study.

The video clip shows the view from the two cameras described in Figure 4.

Figure 6. Illustration. Illustration for Bicyclist Study.

The illustration shows the intersection of two roads, Main Street and Cotton Street. Cotton Street runs north-south and Main Street runs west-east. Cotton Street is a two lane road with parallel on-street parking on the west side of the street north of the intersection and a loading zone on the west side of the street south of the intersection. Main Street is a two lane road with parallel on-street parking on both sides of the road. Cameras were positioned at different places around the intersection in order to capture the movement into and out of the intersection.

Figure 7. Video Clip. Video Clip for Bicyclist Study.

The video clip shows the view from the two cameras described in Figure 6.

Figure 8. Bar Graph. Ratings Distribution at Pedestrian Sites.

The y-axis of the bar graph is labeled "Percentage of Sites" and has markings every ten percent from 0 to 50 percent. The x-axis is labeled "Range of Average Ratings" and has markings of "1.0-1.5," "1.5-2.0," "2.0-2.5," "2.5-3.0," "3.0-3.5," "3.5-4.0," "4.0-4.5," "4.5-5.0," "5.0-5.5," "5.5-6.0." Over the range "1.0-1.5" the bar reaches approximately 9 percent. Over the range "1.5-2.0" the bar reaches approximately 25 percent. Over the range "2.0-2.5" the bar reaches approximately 23 percent. Over the range "2.5-3.0" the bar reaches approximately 19 percent. Over the range "3.0-3.5" the bar reaches approximately 5 percent. Over the range "3.5-4.0" the bar reaches approximately 9 percent. Over the range "4.0-4.5" the bar reaches approximately 1 percent. Over the range "4.5-5.0" the bar reaches approximately 4 percent. Over the range "5.0-5.5" the bar reaches approximately 1 percent. The range "5.5-6.0" shows no marking.

Figure 9. Bar Graph. Ratings Distribution for Through Movements at Bicycle Sites.

The y-axis of the bar graph is labeled "Percentage of Sites" and has markings every ten percent from 0 to 50 percent. The x-axis is labeled "Range of Average Ratings–Through Movement" and has markings of "1.0-1.5," "1.5-2.0," "2.0-2.5," "2.5-3.0," "3.0-3.5," "3.5-4.0," "4.0-4.5," "4.5-5.0," "5.0-5.5," "5.5-6.0." Over the range "1.0-1.5" the bar reaches approximately 7 percent. Over the range "1.5-2.0" the bar reaches approximately 41 percent. Over the range "2.0-2.5" the bar reaches approximately 33 percent. Over the range "2.5-3.0" the bar reaches approximately 9 percent. Over the range "3.0-3.5" the bar reaches approximately 6 percent. The range "3.5-4.0" shows no marking. Over the range "4.0-4.5" the bar reaches approximately 1 percent. The ranges "4.5-5.0," "5.0-5.5," and "5.5-6.0" show no markings.

Figure 10. Bar Graph. Range Distribution for Right Turns at Bicycle Sites.

The y-axis of the bar graph is labeled "Percentage of Sites" and has markings every ten percent from 0 to 50 percent. The x-axis is labeled "Range of Average Ratings–Right Turn Movement" and has markings of "1.0-1.5," "1.5-2.0," "2.0-2.5," "2.5-3.0," "3.0-3.5," "3.5-4.0," "4.0-4.5," "4.5-5.0," "5.0-5.5," "5.5-6.0." Over the range "1.0-1.5" the bar reaches approximately 12 percent. Over the range "1.5-2.0" the bar reaches approximately 49 percent. Over the range "2.0-2.5" the bar reaches approximately 21 percent. Over the range "2.5-3.0" the bar reaches approximately 12 percent. Over the range "3.0-3.5" the bar reaches approximately 3 percent. The ranges "3.5-4.0," "4.0-4.5," "4.5-5.0," "5.0-5.5," and "5.5-6.0" show no markings.

Figure 11. Bar Graph. Range Distribution for Left Turns at Bicycle Sites.

The y-axis of the bar graph is labeled "Percentage of Sites" and has markings every ten percent from 0 to 50 percent. The x-axis is labeled "Range of Average Ratings–Left Turn Movement" and has markings of "1.0-1.5," "1.5-2.0," "2.0-2.5," "2.5-3.0," "3.0-3.5," "3.5-4.0," "4.0-4.5," "4.5-5.0," "5.0-5.5," "5.5-6.0." The range "1.0-1.5" shows no marking. Over the range "1.5-2.0" the bar reaches approximately 12 percent. Over the range "2.0-2.5" the bar reaches approximately 20 percent. Over the range "2.5-3.0" the bar reaches approximately 32 percent. Over the range "3.0-3.5" the bar reaches approximately 18 percent. Over the range "3.5-4.0" the bar reaches approximately 8 percent. Over the range "4.0-4.5" the bar reaches approximately 8 percent. The ranges "4.5-5.0," "5.0-5.5," and "5.5-6.0" show no markings.

Figure 12. Drawing. Bicycle Facility Types

The drawing is a table showing four squares. The top left square shows a two lane road just before an intersection with another road. The two lanes each have a width of 12 feet. The caption reads "None–No Specific Bicycle Facility." The top right square shows the same two lane road with wider lanes of 14 feet. The caption here reads "WCL–Wide Curb Lanes." The lower left square shows the two lane road, but this time there is a separate bike lane to the right of the right lane. The caption reads "BL–Bike Lane." The lower right square shows the same road with the separate bike lane, but shows the bike lane continuing straight through the intersection while the right turn lane crosses through the bike lane. The lines delineating the bike lane are dotted where the right turn lane crosses though. The caption of this picture reads "BLX–Bike Lane Crossover."

Figure 17. Image. Intersection Leg Labels.

This figure shows a generic intersection of two roads, one running north-south and the other running west-east. There is an arrow pointing to the crosswalk running west-east on the north side of the intersection, and the arrow is labeled "This crosswalk is on the North Leg."

Figure 18. Image. Camera Position number 1

This figure shows a generic intersection of two roads with a camera placed along the south side of the west-east road, several yards west of the intersection. The camera is labeled "Camera Position number 1." The view of the camera captures the crosswalk on the south leg of the intersection, which is labeled "Crosswalk of Interest."

Figure 19. Image. Camera Position number 2

This figure shows a generic intersection of two roads with a camera placed along the south side of the west-east road, several yards east of the intersection. The camera is labeled "Camera Position number 2." The view of the camera captures the crosswalk on the south leg of the intersection, which is labeled "Crosswalk of Interest."

Figure 20. Image. Camera Position number 3.

This figure shows a generic intersection of two roads with a camera placed along the east side of the north-south road, several yards south of the intersection. The camera is labeled "Camera Position number 3." The view of the camera captures the crosswalk on the south leg of the intersection, which is labeled "Crosswalk of Interest."

Figure 21. Image. Camera Position number 4.

This figure shows a generic intersection of two roads with a camera placed along the west side of the north-south road, several yards north of the intersection. The camera is labeled "Camera Position number 4." The view of the camera captures the crosswalk on the south leg of the intersection, which is labeled "Crosswalk of Interest."

Figure 22. Image. Pedestrian survey introduction page

This image is a screenshot of the introductory Web page for the pedestrian survey.

Figure 23. Image. Bicycle survey introduction page.

This image is a screenshot of the introductory Web page for the bicycle survey.

Figure 24. Image. Preliminary pedestrian user questions

This image is a screenshot of the preliminary question Web page for the pedestrian survey.

Figure 25. Image. Preliminary bicyclist user questions.

This image is a screenshot of the preliminary question Web page for the bicycle survey.

Figure 26. Image. Pedestrian survey instructions.

This image is a screenshot of the pedestrian survey instructions Web page.

Figure 27. Image. Bicycle survey instructions.

This image is a screenshot of the bicycle survey instructions Web page.

Figure 28. Image. Sample pedestrian video clips page

This image is a screenshot of the sample pedestrian video clips Web page.

Figure 29. Image. Sample bicycle video clips page.

This image is a screenshot of the sample bicycle video clips Web page.

Figure 30. Image. Top of pedestrian rating page.

This image is a screenshot of the top of the pedestrian rating Web page.

Figure 31. Image. Top of bicycle rating page

This image is a screenshot of the top of the bicycle rating Web page.

Figure 32. Image. Bottom of pedestrian rating page

This image is a screenshot of the bottom of the pedestrian rating Web page.

Figure 33. Image. Bottom of bicycle rating page.

This image is a screenshot of the bottom of the bicycle rating Web page.

Figure 34. Image. Edit answers page for pedestrian survey.

This image is a screenshot of the Web page to edit answers for the pedestrian survey.

Figure 35. Image. Edit answers page for bicycle survey.

This image is a screenshot of the Web page to edit answers for the bicycle survey.

 

FHWA-HRT-06-125

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