00743149

Component

https://doi.org/10.3141/1578-16

http://scholar.google.com...Pein&publication_year=1997

Bicyclist crossing time from a full stop was measured using video recording equipment at 16 diverse trail-roadway intersections (two to six lanes, stop or signal controlled, divided or undivided) of the Pinellas Trail in Pinellas County, Florida. A total of 442 bicyclists (single individuals or randomly selected individuals from a group) were timed. The cruising speed of 65 bicyclists was also determined. A linear regression model was fit to the time and crossing-distance data. A linear regression was also fit to eight 85th percentile crossing-time points that were calculated from grouped raw data. Using kinematic physics, in which bicycle acceleration and intersection crossing velocity are variables, a theoretical equation was derived to predict bicyclist crossing time for any distance. This derived equation is a linear function of distance, so the regression coefficients could then be used to estimate bicyclist crossing velocity and acceleration on the Pinellas Trail. These estimated values for bicyclist acceleration and intersection crossing velocity compare favorably with the scant available data from foreign and domestic sources. Thus, the crossing-time prediction equation can be a useful tool when designing intersections for bicyclists, with application in signal timing and crossing-sight distance calculations.

This paper appears in Transportation Research Record No. 1578, Pedestrian and Bicycle Research 1997.

English

p. 127-131

1997

Transportation Research Record

0309061687

Figures (2) ; References (6) ; Tables (2)

Acceleration (Mechanics); Bicycles; Design; Distance; Equations; Forecasting; Linear regression analysis; Mathematical models; Sight distance; Traffic signal timing; Velocity

Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Nov 19 1997 12:00AM

• ANALYSIS OF BICYCLE COMMUTER ROUTES USING GEOGRAPHIC INFORMATION SYSTEMS: IMPLICATIONS FOR BICYCLE PLANNING
• BICYCLE JOURNEY-TO-WORK: TRAVEL BEHAVIOR CHARACTERISTICS AND SPATIAL ATTRIBUTES
• EFFECT OF SITE DESIGN ON PEDESTRIAN TRAVEL IN MIXED-USE, MEDIUM-DENSITY ENVIRONMENTS
• EVALUATION OF SHARED-USE FACILITIES FOR BICYCLES AND MOTOR VEHICLES
• IF YOU BUILD THEM, COMMUTERS WILL USE THEM: ASSOCIATION BETWEEN BICYCLE FACILITIES AND BICYCLE COMMUTING
• INFLUENCE OF ENVIRONMENTAL DESIGN ON PEDESTRIAN TRAVEL BEHAVIOR IN FOUR AUSTIN NEIGHBORHOODS
• INTEGRATED SYSTEMS METHODOLOGY FOR PEDESTRIAN TRAFFIC FLOW ANALYSIS
• PEDESTRIAN FATALITIES ON INTERSTATE HIGHWAYS: CHARACTERISTICS AND COUNTERMEASURES
• PEDESTRIAN IMPEDANCE OF TURNING-MOVEMENT SATURATION FLOW RATES: COMPARISON OF SIMULATION, ANALYTICAL, AND FIELD OBSERVATIONS
• REAL-TIME HUMAN PERCEPTIONS: TOWARD A BICYCLE LEVEL OF SERVICE
• RENEWED COMMITMENT TO TRAFFIC CALMING FOR PEDESTRIAN SAFETY
• SAFETY BENEFITS OF TRAFFIC CALMING
• SKETCH-PLAN METHOD FOR ESTIMATING PEDESTRIAN TRAFFIC FOR CENTRAL BUSINESS DISTRICTS AND SUBURBAN GROWTH CORRIDORS
• SURVEY OF NORTH AMERICAN BICYCLE COMMUTERS: DESIGN AND AGGREGATE RESULTS
• USING AUDITORY PEDESTRIAN SIGNALS TO REDUCE PEDESTRIAN AND VEHICLE CONFLICTS