This deliverable reports on the activities undertaken in WP 2.3 Data Specification. The WP originally comprised of three tasks; Task 2.3.1 Data acquisition, Task 2.3.2 Quality of data and Task 2.3.3 Database structure. The tasks were designed to meet the objectives of the WP namely, to prepare and check the whole data collection, transfer and management in order to ensure that the process can be made as automatic as possible. The main purpose of this deliverable is to provide guidance firstly to those involved in the test site set up and secondly those designing the database. For the test sites, the specific data to be logged and the format that this should take is identified together with any responsibility for processing of the data. The deliverable also provides the information required for the test sites to develop a data quality procedure covering all aspects of the FOT. For the database developers, this deliverable aims to provide a high level description of the database requirements. In addition, a Data Working Group has been established within TeleFOT due to a need to oversee and co-ordinate various data activities across SP2, SP3 and SP4. Since the Data Working Group (DWG) was not a part of the original description of work, no provision had been made for reporting on the activities undertaken by the group. It was therefore decided, subject to approval in changes to the DoW, that the DWG would be reported upon within D2.3.1 and a new task established within WP2.3. The activities thus far are included in Annex 2 of this report. The report is structured in a manner that follows the ordering of the tasks in the DoW. A chapter is allocated to each of the three tasks. Work related to Chapter 1, Data Specification, is still in progress. This task was delegated for consideration within the DWG discussions and activities and has continued throughout 2009. Chapter 2 therefore summarises the results of these discussions to that point. Issues considered include the minimum data requirements for both the L-FOTs and the D-FOTs, the flow of the data from acquisition to storage in the central TeleFOT database, pre and post processing requirements and definitions for derived variables. Specific issues related to the data requirements for the Large Scale Field Operational Tests (LFOTs) and the supporting Detailed Field Operational Tests (D-FOTs) are identified. Chapter 2, Quality of data, lays out the issues that need to be considered in order to assure, as far as possible, the quality of the data from acquisition through transfer and in to storage and analysis. These cover the following stages of the FOT development; * FOT experimental design * Data collection * Data transfer * Data storage * Database quality control * Data analysis * Sampling requirements to ensure the quality of subsequent data analysis * Subjective data collection * Contingencies in the event of problems with the data Each of these topics is considered in sections 2.1 to 2.9 and a summary checklist is provided in Annex 1. The advice given in this chapter should be seen as guidance and each test site should formulate their own quality control procedure that includes consideration of each issue. This is necessary since the guidelines provided are generic to all FOTs whereas each test site within TeleFOT will have their specific requirements. Chapter 3, Database structure, specifies the requirements for Data Specification and provides a high level technical description of the database structure and layout as well as the input data structure. The following are considered; * Performance requirements * Availability requirements * Security requirements * Common framework for centralised long term storage of events * High level data storage structure and layout * Common schema for each data integration * Input data structures These points are considered in turn in sections 3.1 to 3.7. Two scenarios for data collection are identified; in the first the data are sent from the data acquisition system (DAS) to the data management centre, in the second the data are sent to a local data centre and then later on fetched by the data management centre. (Author/publisher) For more information on this project, see http://www.transport-research.info/web/projects/project_details.cfm?id=…
Samenvatting