Safe navigation with CIO+
StayAway and NoGo Areas

A new perspective to keep your vessel on track.

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StayAway Areas

Poor positional accuracy of charted obstructions has played a certain role in grounding incidents of vessels for many years.

For this reason, ChartWorld has developed an additional CIO+ layer based on new technologies that overlay highly accurate satellite images with information from below the water surface on top of ECDIS systems.

This provides mariners with the most accurate information on shoals and underwater obstructions that may not be accurately represented on current charts.

The new StayAway Areas from ChartWorld give mariners a more complete perspective.

NoGo Areas

The service dynamically creates an additional demarcation line that is drawn on top of the ECDIS ENC (User Chart).

This line is drawn on both sides of the route and it is used as an additional reference when a vessel has to find its way through waters “behind” the safety contour which are still considered as safe. In this respect, the NoGo line demarcates regions that must not be entered (i.e., NoGo) at all.

To process NoGo data the service in the ChartWorld BackOffice takes the route information and the safety contour settings of the vessel. Then NoGo Areas are derived from those spot soundings and underwater obstructions (wrecks, rocks, obstructions) that have a depth value that is equal to or is less than the ECDIS safety depth.

The service recognizes the need for an additional margin of safety through the use of CATZOC. This guarantees that inaccuracies – which are inherent to all charts - are taken into account.

The regular CIO+ distribution processes takes care of the CIO+ NoGo Area delivery to the vessels.

CIO+ StayAway Areas

Make Navigation safer from a new perspective
  • Making hidden shoals visible derived from satellite images.
  • Covering areas with CATZOC worse than A2
  • Available for the Philippines, Indonesian, Caribbean Sea. More to come
  • Risk mitigation tool for cases where your vessel needs to deviate from the main traffic lines
  • Delivered in real-time via the ChartWorld NavCloud service
  • ECDIS alarms will be triggered if vessels approach potentially unsafe areas

CIO+ NoGo Areas

Automated outline of dangerous areas for the voyage
  • Comply to OCIMF, Rightship and PSC requirement
  • Reduce the workload of the navigational officer
  • Risk mitigation tool that NoGo areas are entered in the ECDIS and in use
  • Using official ENC data in a combination of ECDIS functions to improve safe approaches
  • Automated NoGo lines based on the ECDIS voyage plan safety contour values 
  • Real-time data supply as part of the NavCloud service
  • ECDIS alarm when approaching the NoGo line

CIO+ StayAway Areas

A new perspective - Please use the slider element to discover the improved chart accuracy

CIO+ StayAway Webinar Part-1

October 27th, 2021

CIO+ StayAway Webinar Part-2

November 3rd, 2021

ChartWorld CIO+ StayAway

Evaluation of ChartWorld CIO+ STAY AWAY area data relevant to Various grounding cases (mentioned in Guard report; 07 JUL 2020, "Grounding incidents in the Indonesian archipelago" by Siddharth Mahajan)
Analysis of Grounding Locations vs. CIO+ StayAway
Results case by case - Analysis of Grounding Locations vs. CIO+ StayAway Area of interest: Indonesian Archipelago
Case Study 1 - Grounding Karimata Strait
Year:    Vessel: Bulk Carrier    Draft: 13 m    Voyage: Indonesia to Japan via Karimata Strait
CATZOC: C (±500m positional accuracy). No isolated danger at grounding position
Traffic Density 2019 Map
Case Study 2 - Grounding Karimata Strait
Year:    Vessel: Very Large Crude Carrier    Draft: 20 m    Voyage: US Gulf to Japan via Sunda Strait - Karimata Strait
CATZOC: B (±50m positional accuracy) No isolated danger at grounding position
Traffic Density 2019 Map
Case Study 3 - Grounding off Selat Sape
Year: 2018    Vessel: LPG Tanker    Draft: 8 m    Voyage: Indonesia to Australia via Selat Sape
CATZOC: C (±500m positional accuracy) Prior to the incident, the ENC showed one rock only (orange arrow). The second rock was inserted at the grounding position after the accident. 
Traffic Density 2019 Map
Case Study 4 - Grounding Makassar Strait
Year:    Vessel: Bulk Carrier    Draft: 14.3 m    Voyage: Tobonao, Indonesia to South Korea
CATZOC: C (±500m positional accuracy) Isolated danger inserted at grounding position (apparently after accident).
Traffic Density 2019 Map

CIO+ NoGo Areas

Please use the slider element to discover automated outline of dangerous areas for the voyage

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