|
Items in cart [0] |
Questions? Call 888-624-8373 |
| Copyright © 2009. National Academy of Sciences. All rights reserved. Terms of Use and Privacy Statement |
Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 149
APPENDIX C
QUESTIONNAIRE TO PILOTS'
ORGANI ZATIONS *
1. Name of pilot organization
2. What waterways and ports are served by your organization?
3. What are the various channel sizes (depth/width) encountered
along this route?
What are the types and sizes of vessels transiting these channels?
5. What major commodities are carried by these vessels?
6. Are the channels adequate for the maneuvering requirements of the
vessels you pilot through them?
7. What vessels present the greatest problems in maneuvering and
control?
8. What areas pose navigational difficulties in the entrances,
channels, and harbor turning basins of your pilotage route?
9. In the areas described above, what major factors contribute to
controllability and maneuvering problems (e.g., channel
constriction, shoaling or underkeel clearance, high winds, strong
currents)?
4.
What practices have pilots agreed to among themselves to
compensate for the deficiencies in channel design (one-way
traffic, restricted passing/overtaking in bends and turns, etc.)
11. Would deepening or widening entrance channels, river or approach
channels, and turning basins improve ship maneuverability and
control?
*Distributed, collected, and analyzed by the Technical Panel on Ports,
Harbors, and Navigational Channels, Study of National Dredging Issues.
149
~ ?
OCR for page 150
150
12. What specific areas should be deepened and/or widened to improve
vessel maneuverability and control in your pilotage area?
13. Do your pilots consider the navigation aids in your area adequate
or in need of improvement?
14. Would improved navigational aids substitute for improvements in
channel depth, width, or design?
What other methods are used in your pilotage area to compensate
for inadequate channels (e.g., use of tugboats, high-water
transit, transit with or against current)?
16. What is the maximum draft of vessels calling at your ports?
17. What underkeel clearance is recommended for transiting your
channels?
18. What is the type of bottom in areas of critical underkeel
clearance (sand, rock, variable)?
19. How was the recommended underkeel clearance established?
20. What traffic control systems (other than those operated by
government agencies) have been established to compensate for
deficiencies in the navigational channels of your area?
-
21. How often is maintenance dredging performed in your channels?
22. Do your pilots consider the maintenance dredging schedule
adequate for the channels along your pilotage route?
23. Generally, what is your assessment of the adequacy of your
waterways for the traffic and conditions experienced by your
pilots and what solutions would you recommend for improvement?
Representative terms from entire chapter:
pilots consider
