{"id":80512,"date":"2020-04-07T06:00:50","date_gmt":"2020-04-07T04:00:50","guid":{"rendered":"https:\/\/www.stradeeautostrade.it\/?p=80512"},"modified":"2022-02-10T16:18:14","modified_gmt":"2022-02-10T15:18:14","slug":"safety-devices-i-built-by-anas","status":"publish","type":"post","link":"https:\/\/www.stradeeautostrade.it\/en\/smart-road-digital-transformation\/safety-devices-i-built-by-anas\/","title":{"rendered":"Safety devices built by ANAS"},"content":{"rendered":"

Safety devices built by ANAS \"\"\u00a0 Per la versione in Italiano: <\/em>https:\/\/www.stradeeautostrade.it\/its-smart-road\/i-dispositivi-di-sicurezza-anas\/<\/a><\/p>\n

The Safety Barriers Sector of the Territorial Operations and Coordination Department of ANAS SpA coordinated by the author, following the specific requirements related to planned maintenance work, has developed new high-performance median barriers.<\/p>\n

H4 ST DSM barrier (steel median barrier H4B class with motorcycle protection system, called DSM)<\/h4>\n

In February 2019, we tested a new steel median barrier called H4 ST DSM. The tests conducted to get CE marking for the system gave back very positive results. The crash test with the light vehicle confirmed the design expectations since the ASI index (Acceleration Severity Index) representing accelerations to which the vehicle occupants were subjected was 1.37.<\/p>\n

\"Safety\"
1. The H4 ST DSM Barrier<\/figcaption><\/figure>\n

The heavy vehicle test provided an indicator of absolute importance in connection with the working width \u201cW\u201d of the barrier, whose value achieved is unique in Italy with containment class and barrier characteristics being equal. Being able to have a barrier only 76 cm wide with a W4 value of 1.28 m will allow ANAS to resolve critical situations marked by limited installation conditions.<\/p>\n

These high-performance results were obtained by inserting a second steel rod coupling at the height of 84 cm from the base of the barrier as compared to the first one at the top of the bar, at about 153 cm.<\/p>\n

\"Safety\"
2. The H4 ST DSM steel rod couplings<\/figcaption><\/figure>\n

The ANAS DSM (motorcycle protection system)<\/h4>\n

The entire range of ANAS steel barriers fully meets the latest requirements introduced by Italian Ministerial Decree of April 1st 2019 \u201cRoad safety devices for motorcyclists (DSM)\u201d. The main objective of ANAS barriers is to prevent serious injury to motorcyclists with use of the motorcyclist protection system (DSM), which prevents direct contact against the posts and the sharp edges of the wave profile during impact.<\/p>\n

Generally speaking, introduction of the DSM structurally integrated with the restraint system makes the behaviour of the ANAS barriers comparable to that of continuous barriers, unlike the existing barriers fitted with exposed posts (discontinuous barriers).<\/p>\n

To check proper operation of the DSM, tests according to the European technical specification CEN\/TS 1317-8 were conducted with the launching of a dummy against the barrier. The dummy was fitted with sensors positioned matching the vital parts of the human body (head, first vertebra and chest).<\/p>\n

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