1、April 2011 Translation by DIN-Sprachendienst.English price group 7No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 0
2、7.060; 13.030.40; 35.240.99!$nwy“1758486www.din.deDDIN EN 15518-2Winter maintenance equipment Road weather information systems Part 2: Road weather Recommended observation and forecastEnglish translation of DIN EN 15518-2:2011-04Winterdienstausrstung Straenzustands- und Wetterinformationssysteme Tei
3、l 2: Straenwetter Empfohlene Beobachtung und VorhersageEnglische bersetzung von DIN EN 15518-2:2011-04Matriels de viabilit hivernale Systmes dinformation mtorologique routire Partie 2: Mtorologie routire Observations et prvisions recommandesTraduction anglaise de DIN EN 15518-2:2011-04www.beuth.deDo
4、cument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.1003.11 DIN EN 15518-2:2011-04 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 337 “Winter maintenance and road service area m
5、aintenance equipment” (Secretariat: AFNOR, France), Working Group WG 1 “Winter maintenance equipment” (Lead-management: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Kommunale Technik (Municipal Services Standards Committee), Working Committee NA 051-
6、03-02 AA Maschinen fr den Straenbetriebsdienst (Spiegelgremium fr CEN/TC 151/WG 16 und CEN/TC 337). 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15518-2 February 2011 ICS 07.060; 13.030.40; 35.240.99 English Version Winter maintenance equipment Road weather information systems Part 2: Road
7、 weather Recommended observation and forecast Matriels de viabilit hivernale Systmes dinformation mtorologique routire Partie 2: Mtorologie routire Observations et prvisions recommandes Winterdienstausrstung Straenzustands- und Wetterinformationssysteme Teil 2: Straenwetter Empfohlene Beobachtung un
8、d Vorhersage This European Standard was approved by CEN on 1 January 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliogr
9、aphical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibi
10、lity of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,Finland, France, Germany, Greece,
11、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management C
12、entre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15518-2:2011: EEN 15518-2:2011 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Requirements on the conten
13、t of road weather observation and forecast products 5Bibliography 8Tables Table 1 Weather forecast products . 6DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 3 Foreword This document (EN 15518-2:2011) has been prepared by Technical Committee CEN/TC 337 “Winter maintenance and road service area maintenan
14、ce equipment”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2011, and conflicting national standards shall be withdrawn at the latest by August
15、 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. EN 15518, Winter maintenance equipment Road weather information systems, compri
16、ses of the following parts: Part 1: Global definitions and components Part 2: Road weather Recommended observation and forecast Part 3: Requirements on measured values of stationary equipment According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following cou
17、ntries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slo
18、venia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 4 Introduction Road Weather Information Systems (RWIS) are complex structures used for road maintenance decision support, which feature as a rule the following components: meteorological sensors and
19、instruments, transmission technology, computer systems for processing, representation and storing of information, road weather forecasts and alarms, in relation to traffic control and traffic information systems and more. Road weather observation and forecast are a set of road and atmospheric parame
20、ters and data used by the road maintenance services to determine future road conditions. This part of EN 15518 lays down the requirements for the recommended road weather observation and forecast information of a RWIS. The aim is to ensure extensive combination and interchangeability within the syst
21、ems. DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 5 1 Scope This European Standard specifies the frequency, resolution and content of road weather observation and forecast products for a Road Weather Information Systems (RWIS). 2 Normative references The following referenced documents are indispensabl
22、e for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Not applicable. 3 Requirements on the content of road weather observation and forecast products Road
23、 weather is characterized by weather phenomena and meteorological parameters which affect the road surface conditions. A distinction has to be made between observation and forecast. The RWIS-forecasts shall provide the necessary information for maintenance agents to: make a short-term (up to 4 h) an
24、d a long-term (up to one week) planning for the disposition of personnel and means; decide on immediate interventions. It has to be considered that the geographical accuracy is indirectly proportional to the forecast period. Therefore a forecast for seven days covers a larger area than a short-term
25、forecast for the next few hours. Road weather observation and forecasts describe conditions which would occur without winter maintenance interventions. They do not take into account the influences from traffic. The forecast provider discloses the scientific basis, the accuracy and the database of th
26、e products to the customer. The forecast products which are recommended are shown in Table 1. DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 6 Table 1 Weather forecast products Forecast product Frequency Resolution Content long-term forecast from the 4thup to the 7thday once a day without amendment days
27、; regions of about 100 km 100 km. general weather conditions for daytime and night-time medium-term forecast up to the 3rdday twice a day days; regions of about 100 km 100 km. a) general weather conditions for daytime and night-time; b) details of road weather parameters such as: 1) general synopsis
28、 with time; 2) minimum air temperature; 3) minimum pavement surface temperature; 4) time of zero crossing; 5) likelihood and time of precipitation or deposition on road surface; 6) wind direction and speed; 7) gusts of wind; 8) snow drift; 9) probability of occurrence. short-term-forecast for 24 h i
29、n tabular form twice a day, if necessary with amendment a in 3 h to 4 h intervals; for small areas with similar climatological properties; for each 200 m to 400 m altitude-levels. air temperature; pavement temperature; total cloud cover; precipitation; wind direction and speed; road surface conditio
30、ns for different site characteristics in the region (motorways, low traffic roads, bridges, shadowy stretches, cities). Radar images and extrapolations for the next 2 h every 5 min to 15 min charts, one pixel for max 2 km 2 km area real time images of the last 2 h; two-hour extrapolation of the actu
31、al precipitation areas; distinction between liquid and solid precipitation. DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 7 Table 1 (continued) Forecast product Frequency Resolution Content warnings as soon as possible before the event area will depend on event description of events affecting road weat
32、her conditions (freezing rain) (large snow/rain falls) (high wind speeds) affected area and anticipated duration consultation with forecast provider on demand on demand on demand satellite pictures bat least 30 min depending on satellite location visible and infrared picture aThe 24-h-forecast shall
33、 be amended if significant new developments occur in the following parameters: precipitation; frost yes/no; road slipperiness; time shift of more than 3 h; fresh snow more than 5 cm. bSatellite pictures are not part of the weather forecast tools, but can be used as a complementary information.DIN EN 15518-2:2011-04 EN 15518-2:2011 (E) 8 Bibliography EN 15144, Winter maintenance equipment Terminology Terms for winter maintenance DIN EN 15518-2:2011-04
