English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Although wireless technology is available for safety-critical applications,few applications have been used to improve train crossing safety. To preventpotential collisions between trains and vehicles, we present a DedicatedShort-Range Communication (DSRC)-enabled train safety communication systemtargeting to implement at unmanned crossings. Since our application's purposeis preventing collisions between trains and vehicles, we present a method tocalculate the minimum required warning time for head-to-head collision at thetrain crossing. Furthermore, we define the best- and worst-case scenarios andprovide practical measurements at six operating crossings in the U.S. withnumerous system configurations such as modulation scheme, transmission power,antenna type, train speed, and vehicle braking distances. From ourmeasurements, we find that the warning application coverage range isindependent of the train speed, that the omnidirectional antenna with hightransmission power is the best configuration for our system, and that thelatency values are mostly less than 5 ms. We use the radio communicationcoverage to evaluate the time to avoid collision and introduce the safenesslevel metric. From the measured data, we observe that the DSRC-enabled trainsafety communication system is feasible for up to 35 mph train speeds which isproviding more than 25-30 s time to avoid the collision for 25-65 mph vehiclespeeds. Higher train speeds are expected to be safe, but more measurementsbeyond the 200 m mark with respect to a crossing considered here are needed fora definite conclusion.

DSRC-Enabled Train Safety Communication System at Unmanned Crossings