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40 Individual Group Cluster Look Both ways Direction One way No W/SB E/NB ? not sure Light Start Day Twilight Nite Normal Hesitate Gender Abort Wait in roadway M F ? Compliance Age <10 ft Child (0-12) 10-50 ft Elderly/Disabled >50 ft (Jaywalk) Teen (13-18) Y. Adult (19-30) #Cars Not Stop Middle(31-60) [Keypad] Over 60 Dist to Stop Activate <5 ft Act, Waited 5 to 30 ft Act, No Wait No Act, Wait >30 No Act, No Wait Malfunction Complete Incomplete Save Back Figure 18. Screen #3 of PDA program. site characteristics were recorded by hand on a pre-printed behavior, conflicts, pedestrian gap acceptance and crossing data sheet and supplemented by a hand-drawn sketch of the times, vehicle counts, and group/cluster information. geometric configuration of the site. The sketch contained key The group/cluster information was simply copied from the geometric dimensions of the study site, which were recorded handwritten sheet completed on site to the spreadsheet file by hand measurements, as shown in Figure 19. The remain- ing site characteristics were collected from the video. Finally, observers also took multiple pictures of each site using a digital camera. These pictures illustrated the various approaches to each crosswalk, relevant traffic control devices, other conditions at the site, and any unusual characteristics that might have been present. The pictures supplemented the sketch and the recorded video for use in reviewing character- istics of each site. Data Reduction Both video and palmtop computer data were post- processed manually to determine pedestrian behavior at each site. PDA data were downloaded and stored in a database file at the conclusion of the study period for each site. These data- base files were converted to spreadsheet files to expedite cal- culations for various emphases in the data reduction: motorist Figure 19. Measuring dimensions at a study site.