Abstract
Abstract The international highways within the city limits of Istanbul are used to transit more than 15 million trucks and other heavy good vehicles per year. According to the statistics, the number of single truck run of the road accidents is in the rise. Recent accidents on bridges showed that currently used bridge rails specified by Istanbul Metropolitan Municipality (IMM) lack the required design criteria to safely contain and redirect heavy vehicles. The objective of this study is therefore design, analyze and test a new high containment level (HCL) bridge rail to be used on bridges on high risk locations, within the city limits of Istanbul. After the development and simulation phases, the bridge rail is subjected to full-scale crash testing in accordance with European Standard EN1317 to conclusively prove its adequacy. This study is of importance since the barrier is the first nationally developed high containment level bridge rail in Turkey. The bridge rail, YIM04 is currently in use on several bridge decks in Istanbul.
Highlights
City of Istanbul is located at a strategic position between Asia and Europe in terms of freight transport
The international highways within the city limits are used to transit more than 15 million trucks and other heavy good vehicles per year [Istanbul Metropolitan Municipality (IMM), 2016]
The objective of this study is to design, analyze and test a high containment level (HCL) bridge rail to be used on bridges and viaducts on increased risk locations, within the city limits of Istanbul
Summary
City of Istanbul is located at a strategic position between Asia and Europe in terms of freight transport. The international highways within the city limits are used to transit more than 15 million trucks and other heavy good vehicles per year [IMM, 2016]. When a loaded tractor trailer goes out of control on a highway, the outcome could be devastating. The kinetic energy of the vehicle traveling as slow as 50 kph could reach up to 700 kJ level and stopping or controlling such a vehicle would be a challenging task [IMM, 2016]. Installation of adequately designed and tested energy absorbing road restraint systems. Note that the latter option only contains and redirects impacting trucks by gradually aborbing the kinetic energy of the vehicle
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