Different approaches of Markov chain analysis.

The leftward and rightward arrows indicate the vessel arrival and departure, respectively. Conservative approach—Scenario 1: Vessel arrives/departs between samples S3 and S4, and S7 and S8, respectively. Samples S4 and S8 following the vessel arrival/departure are discarded. Scenario 2: Vessel arrives/departs during samples S4 and S7, respectively. S4 and S7 are discarded. Less conservative approach—Scenario 3: Vessel arrives and departs between S3 and S4, and S7 and S8, respectively. S3 is considered affected by the vessel arrival. Sample S8 following the vessel departure is discarded. Scenario 4: Vessel arrives/departs during S4 and S7, respectively. Sample S3 preceding the vessel arrival is considered affected. Sample S8 following the vessel departure is discarded.

Different approaches of Markov chain analysis.