‹#›
25 Sep 2012
VSC
3 Consortium
Single Vehicle Position Discrepancy when
reported by 2 GPS units†
Actual Position
GPS 1
GPS 2
Actual Heading
Rcv/Env
Deep
Urban
Mountain
Major
Urban
Thruway
Interstate
Freeway
Major
Road
Local
Road
Major
Rural
Thruway
AG3
41
61
61
71
52
46
64
AG2
56
70
81
76
81
81
86
AG2
44
72
82
90
87
81
87
SG1
67
79
84
81
84
88
91
SG3*
64
-
83
61
91
92
91
SG0
74
87
95
97
96
91
96
% of time is within 1.8m (Across Path):
AG1
* SG3– Only used in 1st Clinic
Rcv/Env
Deep
Urban
Mountain
Major
Urban
Thruway
Interstate
Freeway
Major
Road
Local
Road
Major
Rural
Thruway
AG3
81
95
96
99
98
90
99
AG2
79
96
98
98
98
97
99
AG2
80
97
99
100
100
98
100
SG1
83
99
98
99
99
98
100
SG3*
88
-
99
98
99
100
99
SG0
92
99
100
100
100
99
100
% of time is within 5m (Across Path):
AG1
† Rounded to 1%