Research Article

Automated Incident Detection Using Real-Time Floating Car Data

Table 4

Full state comparison for the A58 in configuration .

BenchmarkONOFFPRE-ONPRE-OFFPOST-ONPOST-OFFINTERPRE-INTERPOST-INTERTOTAL

ON48.23%0.72%0.57%3.35%2.28%0.88%1.41%1.91%1.98%1370397
OFF0.14%669906742.15%0.33%0.61%1.01%0.11%0.07%0.05%67090357
PRE-ON0.28%2.45%3.39%0.02%1.23%0.03%0.12%0.08%0.05%170545
PRE-OFF0.39%0.87%0.02%3.24%0.05%2.66%0.06%0.05%0.10%166197
POST-ON1.26%0.53%1.83%0.10%3.09%0.04%0.12%0.22%0.14%163633
POST-OFF0.04%3.64%0.03%0.45%0.01%3.46%0.06%0.02%0.04%173156
INTER0.06%0.29%0.19%0.02%0.05%0.16%0.36%0.07%0.13%29613
PRE-INTER0.11%0.15%0.05%0.15%0.04%0.22%0.27%0.32%0.06%30784
POST-INTER0.20%0.14%0.20%0.04%0.18%0.03%0.19%0.06%0.36%31174
TOTAL11331096718694318816917207116852818976860133623766475969225856

Column states correspond to the benchmark state while rows denote the state of the FCD AID. Underlined values are false positives while values in bold and italic are false negatives. Values in bold represent hard misses while italic values denote soft misses. Reported results are the percentages of time spent in each of the (loop AID, FCD AID) state combinations throughout the study period over all loops.