
TDC Ultra User’s Manual
A-10
Intersection Stop Delay:
$$$$$$$$$$$$$$$$$$$$ leader characters (20)
001 count number
001 interval number
01 interval length
nnnnnnnn 8 digit site code
AAAAAAAAAAAAAAAAAAAA Alpha site code
AAAAAAAAAAAAAAAAAAAA (20 characters)
hhmm start time
mmddyy start date
nnnn,nnnn,...nnnn data, 10 per line
...
ccc checksum
Saturation Flow Rate, Stop Sign Delay, Time-Stamp:
varies* leader characters (20)
001 count number
001 interval number
(always = 001)
nnnnnnnn 8 digit site code
AAAAAAAAAAAAAAAAAAAA Alpha site code
AAAAAAAAAAAAAAAAAAAA (20 characters)
hhmm start time
mmddyy start date
ss tttt data, 2 per line
...
ss = switch number (01-16, but not all switches are used)
ttt = # of timer ticks since last time marker (0001-2048)
1 tick = 15.6 msec
or
ss = 00 for time marker (1 every 30 seconds)
tttt = checksum for all data since last time marker
*The twenty leader characters vary depending on the study
++++++++++++++++++++ Saturation Flow
<<<<<<<<<<<<<<<<<<<< Stop Sign Delay
RRRRRRRRRRRRRRRRRRRR Time Stamp
or
or
Appendix
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