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040 |aCaOODSP|beng|erda|cCaOODSP
041 |aeng|beng|bfre
043 |an-cn-bc
0861 |aT29-194/2026E-PDF
24500|aTugboat underwater radiated noise measurements / |cprepared by Robert Allan Ltd.
250 |aRevision 3.
264 1|aOttawa, Ontario : |bTransport Canada = Transports Canada, |cMarch 9, 2026.
264 4|c©2026
300 |a1 online resource (1 volume (various pagings)) : |bcharts, illustrations
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
500 |aCover title.
500 |aPrepared for: Innovation Centre of Transport Canada.
500 |a"Project 225-034."
500 |a"Document No. RAL02839R-225-034-500."
504 |aIncludes bibliographical references (page 60).
520 |a"Robert Allan Ltd. (RAL) was retained by the Innovation Centre of Transport Canada (TC‑IC) to conduct a study to compare the underwater radiated noise (URN) from a modern battery‑electric (BE) harbour tug with that from diesel‑mechanical (DM) harbour tug with approximately equivalent size and performance. The two tugs used for the study are normally engaged in ship assist operations in the Port of Vancouver. The objective of the study was to characterize and compare URN emissions across representative operating conditions, identify dominant URN sources and transmission mechanisms, and evaluate the potential URN benefits of battery‑electric propulsion in environmentally sensitive waters"--Executive Summary, page vii.
546 |aIncludes summary in French.
650 0|aTugboats|zBritish Columbia|zVancouver Harbour.
650 0|aUnderwater acoustics|zBritish Columbia|zVancouver Harbour|xMeasurement.
650 6|aRemorqueurs|zColombie-Britannique|zVancouver, Havre de.
650 6|aAcoustique sous-marine|zColombie-Britannique|zVancouver, Havre de|xMesure.
7101 |aCanada. |bTransport Canada, |eissuing body.
7102 |aRobert Allan Ltd., |econsultant.
85640|qPDF|s15.40 MB|uhttps://publications.gc.ca/collections/collection_2026/tc/T29-194-2026-eng.pdf
986 |aTP 15711E