Positive Train Control (PTC) Quarterly Report
PTC Quarterly Report Form Guide
General
Advance Notice of Proposed Rulemaking on Obstructive Sleep Apnea
The Federal Motor Carrier Safety Administration (FMCSA) and Federal Railroad Administration (FRA) request data and information concerning the prevalence of moderate-to-severe obstructive sleep apnea (OSA) among individuals occupying safety sensitive positions in highway and rail transportation,...Locomotive Biofuel Study – Rail Yard and Over the Road Measurements Using Portable Emissions Measurement System
The emissions of three locomotive engines were measured with ULSD and multiple biofuel blends, including B10, B20, and B40. B20 biodiesel fuel reduced emissions of carbon dioxide (CO2), carbon monoxide (CO), hydrocarbon (HC), and particulate matter (PM). Portable Emissions Measurement Systems (PEMS...Estimation of Actual Residual Stresses Due to Breaking and Contact Loading of Rail Vehicle Wheels
A finite element formulation for shakedown stress analysis of rail vehicle wheels is presented, based on a hypothesis that the shakedown state is axisymmetric. The method can be used to estimate shakedown stresses in wheels subjected to combined mechanical (wheel/rail contact) and thermal (...Law Enforcement Strategies for Preventing Rail Trespassing
The Volpe Center has investigated law enforcement methods that have successfully prevented trespassing along the railroad right of way. The types of law enforcement strategies currently being used and procedures followed in the field are documented, along with any findings on the effectiveness...