Vessel Traffic Data and Analysis

What is AIS? Automated Identification System (AIS) Automated Identification System (AIS) Vessel Identification and Tracking System – Based on GPS and VHF Broadcasting Vessel Identification and Tracking System – Based on GPS and VHF Broadcasting Required on all Vessels over 300 GT Required on all Vessels over 300 GT (1) Provides Situational Awareness in Real Time (collision avoidance etc.) (1) Provides Situational Awareness in Real Time (collision avoidance etc.) (2) Collected data produces a historical archive of Vessel Traffic for the Entire Coast. (2) Collected data produces a historical archive of Vessel Traffic for the Entire Coast.

AIS Vessel Requirements As of December 31 st, 2004, the following must have a properly installed, operational, type-approved AIS On international voyage: On international voyage: Tankers, Passenger > 150 GT, all others ships > 300 GT Tankers, Passenger > 150 GT, all others ships > 300 GT  Per SOLAS Regulation V/ Self-propelled commercial vessels > 65 feet Self-propelled commercial vessels > 65 feet  Except fishing and passenger vessels (<150 passengers) Within a VTS area: Within a VTS area: Self-propelled commercial vessels > 65 feet Self-propelled commercial vessels > 65 feet  Except fishing and passenger vessels (<150 passengers) Towing vessel > 26 feet and > 600 hp Towing vessel > 26 feet and > 600 hp Vessel certificated to carry > 150 passengers Vessel certificated to carry > 150 passengers

NAIS Overview

Shipboard AIS

AIS Analysis Input Data AIS Returns for 2009 AIS Returns for 2009 Monthly Data for Atlantic – Maine to Florida Monthly Data for Atlantic – Maine to Florida Each Month is Clipped by Protraction, then Merged Each Month is Clipped by Protraction, then Merged AIS Analysis Input Includes all Months for 2009 AIS Analysis Input Includes all Months for 2009 June is missing 25 days of data for 2009 June is missing 25 days of data for 2009

AIS returns – January 2009

AIS returns – Vessel Data

AIS returns – January 2009

AIS returns – All Months 2009

AIS returns – July 2009

AIS returns – All Months 2009

Vessel Speed and AIS Point Density

AIS Density Mapping Quantify unique vessels (MMSI) passing through each leasing unit (aliquot) per year. Quantify unique vessels (MMSI) passing through each leasing unit (aliquot) per year. Extract deep draft vessel types for depicting traffic volume for larger vessels. Extract deep draft vessel types for depicting traffic volume for larger vessels. Other mapping includes avg. vessel time in aliquot, avg. speed, etc. Other mapping includes avg. vessel time in aliquot, avg. speed, etc.

OCS Blocks – 2.6nm x 2.6nm, Aliquots (sub-blocks) -.65nm x.65nm

Filtering by Date to Remove Duplicate Returns

Extracting Vessels by Deep Draft Type Cargo Vessels, Tankers, Tugs, Towing, Towing > 200m Cargo Vessels, Tankers, Tugs, Towing, Towing > 200m Comparison of unique traffic patterns by type. Comparison of unique traffic patterns by type. Maps use a more sensitive color scale to display lower volume types. Maps use a more sensitive color scale to display lower volume types.

Vessel Traffic Data and Analysis