D6.2 Route reporting to VTS service

Similar documents
ENSI, Enhanced Navigation Support Information ENSI Workflow Sidebar Shortcuts Navigating the Sidebar Adjusting the sidebar settings Route Warning

D4.3 Operational MSI/NM T&P Service

Deliverable D1.29 MCP/VDES inter-operability report

Service Design Description for the xxx Service <xyz Technology>

EfficienSea 2. Presentation for HELCOM AIS Expert group

OPERATOR'S MANUAL. FURUNO FINLAND Sea Traffic Management. Furuno Finland Oy.

Maritime Single Window / Users Manual / Data Providers. User Manual. Data provider. Version v0.4. Version 0.4 / Date December 2017 Page 1 of 118

S-100 Product Specification Roll Out Implementation Plan. Introduction

Service Documentation Guidelines

RESOLUTION MSC.210(81) (adopted on 19 May 2006) PERFORMANCE STANDARDS AND FUNCTIONAL REQUIREMENTS FOR THE LONG-RANGE IDENTIFICATION AND TRACKING OF

GUIDELINE NUMBER E-NAVIGATION TECHNICAL SERVICES DOCUMENTATION GUIDELINE

D1.18 Review of IALA Website VDES and related pages

DM800 ECDIS. Solid Safe Simple. Danelec systems. Electronic Chart Display & Information System. Solid Safe Simple

ABP Agents Interface Help File

Message exchange with. Finnish Customs

Information on IHO Standards related to ENC and ECDIS

Document No: Title: Port Information Service Specification Date:

View from a bridge. Collective navigational challenges in comparable sea areas Ringo Lakeman senior policy adviser / CM IMO NCSR 3

E-Navigation from the end users perspective

Integrity monitoring and authentication for VDES Pre-Distributed Public Keys

Beyond the e-navigation implementation plan: Development towards the unmanned merchant vessel?

GUIDELINES FOR DEFINING APPLICATION SPECIFIC MESSAGES

v Introduction v Contents of an Effective Oil Spill Response Contingency Plan (OSRCP) v Conclusion

Transport og logistik i det Nye Nordjylland. Ny teknologi i transport sektoren Aalborg Havn. Wednesday 3th of May 2006

IHO Report on the results of the ECDIS survey conducted by BIMCO and Denmark. 18 February 2014

GateHouse AIS Provider Proxy - User Guide

Procedure for the Selection, Training, Qualification and Authorisation of Marine Management Systems Auditors

uanacia 1+1 MARINE SECURITY OPERATIONS BULLETIN No:

Paper for consideration by TSMAD Roles in S100

Digital Authentication Strategies for the Automated Identification System

Data Sheet NCP Secure Enterprise Management

Research on Voyage Navigation S/W Development Architecture Using Open Source Base GIS Modules

WORLD CLASS MARINE SERVICES. safeen.ae

Deliverable D8.4 Certificate Transparency Log v2.0 Production Service

DM100 L-VDR. Light Voyage Data Recorder. Danelec systems Solid Safe Simple

Upgrading to v4.1. Passage Planner User Guide V4.1

Marine Information Objects (MIOs) and ECDIS: Concept and Practice

BASTA Baltic Sea Rim Maritime and Seaport Connectivity. Project proposal, subject to contract

Solution-orientated concepts: the integration of information received via communication equipment with onboard navigational systems

Direct Message Exhange (Web Service)

Principles for a National Space Industry Policy

NCP Exclusive Remote Access Management

barbados maritime ship registry

Note: For the creation of an application schema several software tools can be used. Enterprise Architect is one of the tools that can be used.

WP6 D6.2 Project website

Service Description: Tactical Route Suggestion

Maritime Security Panel Canadian Maritime Security Impact of Big Data

Secure information exchange

13 th CHRIS MEETING September 2001, Athens, Greece THE INLAND ECDIS STANDARD OF THE CCNR

Final Project Report. Abstract. Document information

PRODUCT SPECIFICATION for RASTER NAVIGATIONAL CHARTS (RNC)

Request for Information Strategies to Improve Maritime Supply Chain Security and Achieve 100% Overseas Scanning

CYBERSECURITY IMPLEMENTATION FOR THE MARINE AND OFFSHORE INDUSTRIES

User Manual Central Hazmat Database

PKI Contacts PKI for Fraunhofer Contacts

Traffic Data Interface Specification

SMART Ship Program. Najmeh Masoudi Cyber safety and security manager. Palazzo S. Giorgio - Genova, 28/06/ Copyright Bureau Veritas

SafeSeaNet Data Quality report First quarterly (April, May and June 09)

AFTN Terminal. Architecture Overview

The SCADA Connection: Moving Beyond Auto Dialers

Autonomous Swarm of Heterogeneous Robots for Border Surveillance

Submission of proposals: Overview & Submission System

Nationwide Automatic Identification System (NAIS) Overview. CG 939 Mr. E. G. Lockhart TEXAS II Conference 3 Sep 2008

TRADELENS. Data Sharing Specification. Version General Availability

GUIDANCE HOW TO IMPLEMENT THE PROJECT VIA THE ELECTRONIC MONITORING SYSTEM (PART I)

DM100 VDR. Voyage Data Recorder. Danelec systems Solid Safe Simple

CISE. an INFORMATION SHARING TOOL to support INTEGRATED MARITIME SURVEILLANCE. European Maritime Day Göteborg, May 22 nd 2012

Procedure for Network and Network-related devices

ETSI GS MEC-IEG 005 V1.1.1 ( )

AUTONOMOUS NAVIGATION: MUNIN UNMANNED VESSEL TEST-BED

Network Security Policy

Geospatial Intelligence Centres Empowered by Airbus

MT+ Beneficiary Guide

STATUS QUO REPORT ON ENC ACTIVITIES

The New Electronic Chart Product Specification S-101: An Overview

Dynamic Positioning TCommittee

IoT & SCADA Cyber Security Services

+ + REDENAVES ELECTRÓNICO II USER S GUIDE EXCEL APPLICATION FOR UPLOADING DOCUMENTS. August Prepared Reviewed Approved Published

SHA-1 to SHA-2. Migration Guide

PacTracs 2.0 Quick Start Guide

Maritime cyber risk management

CYBER RISK AND SHIPS :PRACTICAL ISSUES FOLLOWING BIMCO GUIDELINE

Expert Input to Communication Technologies Communication Solutions and Technology: VDES, Roaming, Onboard Network

bpm online CRM technical design

MT+ Beneficiary Guide

Call for expression of interest in leadership roles for the Supergen Energy Networks Hub

The EUCISE2020 project

CRISIS TEAM GUIDE TO RESPONSE IN US WATERS

PKI Configuration Examples

5PRESENTING AND DISSEMINATING

Webinar IUCLID 6 Questions and Answers

International Standards and Guidelines Implementation Framework

White Paper: Next generation disaster data infrastructure CODATA LODGD Task Group 2017

IMO MEASURES TO ENHANCE MARITIME SECURITY. Outcome of the 2002 SOLAS conference. Information on the current work of the ILO

Cyber risk management into the ISM Code

EUMETSAT response on ET SAT Action 5.1

Ship Security Alert Systems (SSAS) Competent Authority as Designated by the Isle of Man Ship Registry

HYDROGRAPHIC DICTIONARY

Kentucky Wireless Information Network Service (Ky-WINS)

SSN-VMS synergies pilot project. Tutorial on the web-based graphical interface for the FMC users (SSN GI)

Transcription:

D6.2 Route reporting to VTS service Project no. 636329 Project acronym: EfficienSea2 EfficienSea2 - efficient, safe and sustainable traffic at sea Funding scheme: Innovation Action (IA) Start date of project: 1 May 2015 End date of project: 30 April 2018 Duration: 36 months Due date of deliverable: 31.04.2017 Actual submission date: 27.04.2017 Organisation in charge of deliverable: Finnish Transport Agency (FTA)

Name Alexander Legkikh Mikko Klang Kaisu Heikonen Organisation Vissim FTA FTA Version Date Initials Description 0.5.3 6.04.2017 AL, MK, Draft for review 1.0 27.4.2017 MK Final version Name Tomas Groth Christensen Mikhail Andrianov Organisation DMA Transas Page 2 of 23

Contents Document Status... 2 Authors... 2 Document History... 2 Review... 2 1 Introduction... 4 1.1 Route exchange and information service... 4 1.2 Relation to Maritime Cloud (MC)... 5 1.3 Testing of the integration... 5 1.4 Intended use of this document... 5 2 ENSI services for shore users... 7 2.1 Voyage Query Interface... 7 2.2 Route exchange service... 7 2.3 Ship Reporting System (SRS) reporting service... 7 2.4 Route validator... 8 3 Vissim VTMS software... 9 Introduction... 9 4 Integration between Vissim and ENSI systems... 10 4.1 Interfaces used for integration... 10 4.1.1 Use of PKI for authentication and authorization... 10 4.1.2 Getting the list of active voyages... 13 4.1.3 Getting the routes for active voyages... 14 4.1.4 Getting the SRS reports for active voyages... 14 4.2 Software implementation... 14 4.3 Use cases... 14 5 Acronyms... 20 6 Annexes... 21 6.1 ENSI Specifications... 21 6.2 ENSI Schemas... 21 6.3 Use Cases of other implementations... 22 Page 3 of 23

The ENSI (Enhanced Navigation Support Information) Service allows vessels to send their route plans and mandatory SRS (Ship Reporting System) reports to a Route-Exchange- Server electronically and authorized partners (e.g. Vessel Traffic Service systems) to retrieve the information from the server. In addition, the service executes a cross-check for the route plan and allows both the vessel and authorized partners to get the results of the cross-check as well as other information tied to the particular route and local conditions. Route plans and SRS reports together form vessel s Voyage information. The Voyage-Query service enables external shore systems to retrieve Voyage information using the PKI mechanism for authentication and by providing the query document. This enables a system to query the information for a specified vessel. The service enables a single window approach for reporting, as a vessel may only need to report once as the reported Voyage information may be retrieved by several shore-based systems connected to the service. Particularly in an area like Baltic Sea, where the distances are relatively short, all the reported information mainly remains the same, including vessels draft. If changes occur, the vessel can update the altered information to only one address, thus reaching all participating shore stations. Compared to current reporting practices, on vessels point of view, this reduces the administrative burden, by taking away the need to find the contact details to all different mandatory Ship Reporting Systems enroute, sort out the slightly different reporting practices, compile different messages with same payload and report them one by one, often by voice over radio in areas where the focus should be on navigation. For shore stations, this offers an error-free way to receive mandatory ship reporting information, extended with route plan, and a possibility to choose the moment when to deal with the information. Although the basic Voyage information service, ENSI, has been operative in several years, it has been a local implementation serving only one VTS centre. In EfficienSea2 efforts has been focused in organizing and preparing the connections between additional shore stations and the route exchange service. One of the main goals of the task 6.1 could be summarised as follows, to reach additional shore stations thus making the route reporting beneficial for vessels in true life, and thus lowering the threshold for real implementation of route reporting. For the purpose of the EfficienSea2 project, Vissim AS has developed the first third party integration with ENSI Service. The purpose of the integration is to test and prove the possibility of integrating information from existing and future cloud based services into commercial operating VTS system and to demonstrate the viability of ENSI service as a common route reporting service. Page 4 of 23

ENSI Voyage Service will be described using the specification templates developed in EfficienSea2 project (D3.4). By the time of writing this deliverable, the development of MC compatible service specifications is in progress, well in schedule with respect to the project. Identification of further development needs related to the support of the MC Identity Registry based certificates are also in progress. The current implementation of the Voyage information service does not support any external user authentication but in the future MC authentication is envisioned to be supported and trusted. The service and its interfaces are already operational, open and in no collision with the MC and its paradigm, having no dependencies on other tasks. In practise, this means that the service can be used immediately, and the changes caused by implementing certificates granted by MC will be easy to update to the earlier implementations later on. The operational model remains the same. The Sound VTS will test the use the Voyage information service as a part of EfficienSea2. A Vissim workstation will be delivered to the traffic centre and the information provided by the system is given for the use of operators, as a part of task 6.2 VTS and SRS reporting. The technical testing has been completed as a part of building the integration. This deliverable document focuses on the technical description on how to get connected to the ENSI server as a shore end point user, giving system developers tools to integrate ENSI service in monitoring systems. The service will provide all consumer systems with the same vessel reporting information. The presentation and ways of exploitation the information is entirely for the shore system itself to decide. The overall description of the ENSI service is to be found in separate deliverable document D6.1 Basic route handling / exchange service, and it is highly recommended to read it in connection with this document, especially if the reader does not have a solid knowledge of the background. The deliverable D6.1 attends mainly to explain how the service operates and how it appears to the vessel end point users. The shore end point is only shortly described in D6.1, chapter 5.3 'Voyage query Interface'. This deliverable document also describes another existing implementation to inspire users and developers of VTS systems to create their own ways to exploit the data delivered via ENSI service or another service similar to it. The reader shall understand that the route exchange as a routine means of reporting is a new-born approach in maritime context, and Page 5 of 23

the early implementations should not be experienced as Standard Operation Procedures in any way. Furthermore, it should be noted that even though the whole maritime related reporting scene is a complex task to digitize and automate, the first steps are not necessary complicated, expensive or difficult and time consuming to implement. The ENSI service is available to VTS and SRS operators in Baltic Sea Region regardless of them being a partner in a project or not. The service is also vendor independent. Expanding the coverage of vessel reporting points will increase the value of the service for vessels, and thus hopefully raise the amount of vessels participating the service. Page 6 of 23

All the services available in ENSI are not in the centre of development in EfficienSea 2 project, e.g. weather services and pilot ordering, due to the complexity of scaling related to the benefits to be achieved, or simply because other actors are developing same kind of services. The focus is in the very core services, that is the route exchange, the route crosscheck (validation), and the SRS (Ship Reporting System) reporting. All existing services are still available through ENSI Gateway in the extent they appear and have been described in D6.1. However, there is no particular reason to expand the descriptions to all subjects. Thus in this document, only the core services are described. The ENSI server component provides an interface for searching submitted ENSI voyages. The client generates an XML document with the desired query parameters that coheres with the Voyage Query Schema and sends it to the ENSI server. The server will process the XML and in turn perform a query against the ENSI database. The results of that query are returned as a XML document. The XML document returned is based on the Voyage schema used in the public ENSI web interface. The XML document will contain a list of all voyages that matched the query. Each voyage in the returned document will have the route ID, SRS IDs and META information such as vessel identifications, vessel name, destination name, destination LOCODE and destination ETA. The route and SRS data can be retrieved from the server using the IDs supplied in the response. The specific description of the interface is in the Voyage-Query-Interface-specification- 2016-05-06.pdf (Annex 2). The ENSI provides a machine-to-machine solution for a vessel to deliver its route plan to be cross-checked and monitored by VTS services connected to ENSI. The detailed information on how to make queries for routes is described in ENSI-Voyage- Service-specification-2016-05-06.pdf (Annex 3). At the moment of writing, the format of the route file is following the route-exchange.xsd, but expected to change to follow the latest version of iec_rtz.xsd. The mandatory SRS reporting can be performed using the ENSI Gateway, to SRS / VTS systems connected to ENSI. VTS clients retrieve the SRS information as a part of the Voyage report. Page 7 of 23

The detailed information of the SRS is described in ENSI-SRS-Specification-2012-11-13- livi.pdf (Annex 5). The SRS file is a XML as in srs.xsd schema (Annex 9). While the srs.xsd is originally created to serve the GOFREP area, some information needed in other SRS areas might be missing, e. g. the air draught. This or any other additional information can be added to the extra information field, which enables 200 characters of free text. The ENSI uses a stand-alone module for a cross-check of the route. The module compares the submitted route with maritime data, and creates a list of observations regarding the route. The validator uses the best S57/ENC data available. The parameters of the validation can be adjusted. The route validator generates a warning for example when The draught of the vessel is greater than the depth range The draught of the vessel is greater than the clearance depth of a fairway The route crosses seabed obstructions The route crosses ODAS (Oceanic Data Acquisition System) buoys The route crosses a traffic separation zone The route crosses a traffic separation lane in the wrong direction The submitted route crosses the area of present chart coverage The warnings include the triggering reason and position. The route cross-check is a service that is offered for vessels in support of route planning. The monitoring shore operators are expected to make visual checks for the routes of vessels arriving the area, and thus execute a cross-check of a true local expert. For gaining experience and as a demonstrator, ENSI Service offers the outcomes of route-checks for the shore operators as well for an indeterminate period. Individual shore services shall build their own route validators if deemed valuable. It is to be noted, that until wider adoption of the service the coverage of cross-check is in relation to the monitoring areas that has implemented ENSI service and expected to be active in reporting. New areas are not necessarily automatically covered. Please ensure the arrangements to cover the area of your interest. The response of the cross-check can be retrieved by the VTS. The response file is a XML as in vessel-waypoint-exchange-response.xsd schema (Annex 11). Page 8 of 23

Introduction Vissim offers products and support for integrated marine and offshore operations supplying software for VTS, surveillance and asset protection systems and oil spill detection, voice communication and support for routing and logistics. Vissim adopts a design concept of fully integrated VTMS systems based on IP communications and distributed networks. The systems are built from modular components that are added as required to achieve the functional requirements. The Traffic Displays software present the real time situation within the coverage area. Information about vessels can be quickly accessed through the on screen functions and databases can be interrogated to find further details of past visits etc. Special areas of interest can be defined where warnings will be provided if certain rules are not correctly implemented or if there is a risk of collision or a near miss situation. Figure 1: Vissim AS. product history Page 9 of 23

For the purpose of the EffficienSea2 project Vissim has developed integration components that allow interaction with 3 rd party cloud based services, enabling Vissim system to fetch required data from future and existing services. The services used for the integration are provided by ENSI Gateway which is established and operating in the Baltic region. The purpose of the integration was to show possibility of integrating useful information from existing and future cloud based services into commercial operating VTS system. for integration 4.1.1 Use of PKI for authentication and authorization The ENSI system uses standard PKI solutions (https and client certificates) to encrypt data and authenticate the ENSI clients. The description of the client authentication used is in ENSI-eNavigation-PKI-Specification- 2015-06-26-final.doc (Annex 1). A client certificate was generated by Finnish Transport Agency and provided to Vissim. At present the whole chain of trust is managed by the Finnish Transport Agency, and certificates are manually generated for each user. The process contains the creation of a user account containing all necessary information depending on the users role, and the generation of the actual certificate binded to that particular user account. A certificate can be requested via website https://ensi.fta.fi or emailing ensi@fta.fi. Different certificates are used in the developers test-server and operational server. Page 10 of 23

Figure 2. Client certificate released by ENSI for integration with Vissim The ENSI system uses three-level PKI certificate hierarchy: Root CA certificate Intermediate CA certificate Client CA certificate As the ENSI root CA certificate is self-signed, both root and intermediate certificates need to be installed in the certificate storage on the client side. The root CA certificate need to be trusted in order to allow secure connections towards the ENSI Gateway. Page 11 of 23

Figure 3. ENSI intermediate CA certificate imported to the certificate storage Page 12 of 23

Figure 4. ENSI root CA certificate imported to the certificate storage 4.1.2 Getting the list of active voyages For the publicity of this document, the complete URL s are removed to lower possible harassment threat. Completed URL s will be provided on request from the same sources as the certificates. In order to receive the list of active voyages the Voyage Query Interface is used.the POST HTTP request containing XML data that corresponds the voyage-query.xsd scheme is being sent to the https://[host]:[port]/core/service/admin/voyage/query/ interface. <?xml version="1.0" encoding="utf-8" standalone="yes"?> <voyagequery xmlns="http://www.navielektro.fi/ns/formats/voyage-query"> <latestonly>true</latestonly> <maxresults>1000</maxresults> </voyagequery> In response to the sent request the ENSI Gateway is providing the list of active voyages as an XML data conforming the voyage.xsd schema. Page 13 of 23

4.1.3 Getting the routes for active voyages For each of the active voyages provided by the ENSI Gateway, route information is queried by the means of the https://[host]:[port]/core/service/route/ interface by sending a GET HTTP request. Example: https://[host]:[port]/core/service/route/06cb00eb-ea26-4357-af4f-5c2614d9cc29 The ENSI Gateway returns a route data for the requested route in the XML form that conforms the route-exchange.xsd schema. 4.1.4 Getting the SRS reports for active voyages In addition to the route data, SRS reports are being fetched from the ENSI Gateway. The GET HTTP requests are issued towards the https://[host]:[port]/core/service/srs/ interface. Example: https://[host]:[port]/core/service/srs/387daa50-697e-4953-ab54-38514c7ea015 As a result, the XML data that conforms the srs.xsd schema is being returned. Integration with the ENSI system follows the standard integration design established in Vissim systems. A new software component (ENSI Integrator) was implemented. The software module is interfacing the ENSI Gateway using the defined opened interfaces. On another side the ENSI Interface software module is communicating to the VTMS server software which is in turn providing required data to the user interface module. Traffic Display software is used for visualisation of routes and SRS reports received from the ENSI system. ENSI system Vissim system ENSI Gateway ENSI Integrator VTMS server components VTMS user interface software (Traffic Display) This section shows examples of use of data received from cloud based ENSI service in the Vissim VTMS system. Another use case by another system is found as (Annex 12), to keep well clear from the Vissim use cases. Page 14 of 23

VTS Operator is able to get the list of all available routes provided with route names and MMSI number of the vessel who reported the route. Figure 5. Overview example showing traffic around Denmark and Sweden with integrated route information obtained from the ENSI Gateway In order not to overload the operator s view, routes can be hidden by default, and shown when selected in the list. The standard functionality to locate a route and view its parameters is available. Parameters window for the selected route visualizes the information received from the ENSI Gateway in a form of table. Following route information is visualized: General o Name Route parameters o Created by o Destination name o ETA o Locode Vessel o Name Page 15 of 23

o Call Sign o MMSI o IMO Schedule o Waypoint name ETA Speed Figure 6. Information presented in several screens, allowing various level of detailing as well as parameters of one of the routes The route data including geographical coordinates of waypoints and turn radius is used for the graphical representation of a route on the chart in correct scale. Visualized route shape as well as text route information can be used by VTS operators for the analysis and risk assessment of the planned vessel move. Following checks can be a part of the analysis routine: Access to no go areas Violation of defined traffic rules like fairways Page 16 of 23

Figure 7. Detailed information about route composition with waypoints and turn radiuses SRS report fetched from the ENSI Gateway is provided to VTS operator in the tabular form as a part of the route parameters window. Following information is visualized from SRS reports: Vessel o The vessel s present maximum draught in metres o Brief details of defects or restrictions of manoeuvrability o Description of pollution or dangerous goods lost overboard o Total number of persons onboard Extra textual information (free text) Hazardous cargo on board o Tons of bunker o Cargo # IMDG cargo class Cargo weight in tons Page 17 of 23

Figure 8. SRS information reported by a cargo vessel SRS reports can have different content being provided by various types of vessels. Page 18 of 23

Figure 9. SRS report provided by a ferry Page 19 of 23

Term ENSI GOFREP HTTP PKI SRS VTMS VTS Definition Enhanced Navigation Support Information Gulf Of Finland Reporting System Hypertext Transfer Protocol Public Key Infrastructure Ship Reporting System Vessel Traffic Management System Vessel Traffic Service Page 20 of 23

Number Item 1 ENSI- enavigation-pki- Specification- 2015-06-26- final.doc.pdf 2 Voyage-Query- Interface- specification- 2016-05-06.pdf 3 ENSI-Voyage- Service- specification- 2016-05-06.pdf 4 ENSI-RTZ-Route- Service- specification- 2016-05-06.pdf 5 ENSI-SRS- Specification- 2012-11-13- livi.pdf Comment Attached ENSI enavigation PKI Specification Public for System Integrators Releasable for InterNet Transmission Attached ENSI Allied Authorities Query Interface Specification For Allied System Integrators Releasable for Allied VTS Authorities Attached ENSI Voyage Service based on IEC-RTZ Specification Public for System Integrators Releasable for Internet Transmission Attached ENSI Route Service based on IEC-RTZ Specification Public for System Integrators Releasable for Internet Transmission Attached ENSI SRS Specification Public for System Integrators Releasable for InterNet Transmission Number Item Comment 6 voyage-query.xsd Attached, http://www.navielektro.fi/ns/formats/voyage-query 7 voyage.xsd Attached, http://www.navielektro.fi/ns/formats/voyage 8 routeexchange.xsd Attached, http://www.navielektro.fi/ns/formats/route-exchange 9 srs.xsd Attached, http://www.navielektro.fi/ns/formats/srs 10 common-geo.xsd Attached, http://www.navielektro.fi/ns/formats/common-geo 11 vessel-waypointexchangeresponse.xsd Attached, http://www.navielektro.fi/ns/formats/vessel-waypoint-exchangeresponse Page 21 of 23

Number Item 12 Using ENSI route plans in VTS operations.pdf Comment A use case from Finnish VTS system Page 22 of 23

No Reviewer Initials Reference in document (General or Paragraph, Figure ) Type (editorial, structural, formulation, error) Reviewer's Comments, Question and Proposals Editor s action on review comment.