Marine Traffic Data of Chicago, Illinois and the South Shore of Lake Michigan.
Abstract
Data was collected on the marine traffic and VHF-FM marine communications channel usage at Calumet Harbor, Chicago Harbor, and Lemont, Illinois, at the junction of the Chicago Sanitary and Ship Canal and Calumet-Sag Channel, during the period of 7-29 June 1978. The marine traffic data was recorded by means of time-lapse photography of a radar display. Recordings were made of the communications on VHF-FM maritime mobile Channels 13 and 16 as received at the sites. The daily average of marine traffic, including large, medium, small and anchored vessels, and tugs-in-tow, transiting the Calumet Harbor/Indiana Harbor area is 48; and transiting Chicago Harbor is 312. The daily average of tug/barge and small vessel transits on the Chicago Sanitary and Ship Canal is 30; the Calumet-Sag Channel is 11. Approximately 300 hours of communications of VHF-FM Channel 16, and 150 hours of VHF-FM Channel 13,,were recorded and monitored to determine channel efficiency (i.e., percentage of valid messages) and utilization. Channel 13 efficiency for the period of data collection is 0.0%, utilization 0.02%. Channel 16 efficiency at Calumet Harbor is 47.76%; at Chicago Harbor, 66.50%; and at Lemont, 64.72%. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1979
- Accession Number
- ADA080060
Entities
People
- B. H. Charters
- J. J. Cherny Iii
- M. R. Young
- R. A. Silva
Organizations
- United States Coast Guard Research & Development Center