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Designing Safety into Highway-Rail Grade Crossing
Projects
February 13, 2017
Copyright 2016 by CTC, Inc. (CTC)
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• A train strikes a vehicle or person every 4 hours in U.S.
• 2,059 crashes in 2015• 244 fatalities• 967 injuries
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Overview of Grade Crossing Safety
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Overview of Grade Crossing Safety
WHAT TXDOT & FRA DISCOVERED2003 – 2007 Crash Data Analysis Significant Findings
• Total of 1,328 collisions at 1,044 crossings.• 61% - of total collision-crossings had active
warning devices in place.• 35% - at active crossings where multiple-
collisions were reported• 80% - at crossings located within close proximity
of a nearby highway intersections
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Overview of Grade Crossing Safety
Analysis of Crossings Located Near Highway Intersections• 229 of 803 reported RR active warning devices
interconnected with nearby traffic signals• 46% - occurred at multi-collision crossings• 42% - at crossings located less than 75 feet
from adjacent highway intersection• 69% of the crossings had active warning
devices
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Overview of Grade Crossing Safety
CONCLUSIONSHigher incidence of collisions at crossings located adjacent to highway intersections and where railroad signals are interconnected with adjacent traffic signals, and experiencing multiple collisions.
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The FRA Technical Bulletin S-12-01
Federal Railroad Administration (FRA) accident data indicates that inappropriately designed or wholly nonfunctioning pre-emption interconnections have contributed to a number of severe highway-rail grade crossing collisions.
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Traffic Signal Preemption
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Education – Design, maintenance and inspection
• Training of railroad and traffic signal maintenance personnel
• Minimum – yearly joint test of preemption operation system
• Joint preemption test any time changes are made to traffic signal equipment or repairs are made
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Traffic Signal Preemption
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Gov. Cuomo, New York legislators implement measures to improve rail safety (6/14/2016)
The legislation requires every railroad, municipality or state agency with jurisdiction of a highway that includes a crossing to conduct, at a minimum, biennial inspections of traffic-control devices. The law authorizes the New York State Department of Transportation (NYSDOT) to establish, implement and exercise oversight over a program to coordinate the joint inspection of traffic-control signals interconnected with crossing warning systems.
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Traffic Signal Preemption
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The Solution: Technology
• Enhanced interconnection circuits • Preemption interface system (RPS) • Traffic signal controller software
becoming more preemption friendly
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Traffic Signal Preemption
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DESIGN OPTIONS FOR IMPROVING SAFETY AT HIGHWAY-RAIL GRADE
CROSSINGS
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Median and Channelization
Installation of concrete medians or channelization to prevent motorist from driving around gates
Not just a option for quiet zone!
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SIGNS AND PAVEMENT MARKINGS
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LED SignsTo Advise Motorists
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Signs and Pavement Markings
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Signs and Pavement Markings
Eliminate Crosswalk adjacent to track
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Signs and Pavement Markings
Provide Pedestrian refuge in median
Pedestrian refuge with push buttons
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Signs and Pavement Markings
Left and Right Turn Arrow approaching the track
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Signs and Pavement Markings
Left and Right Turn Arrow approaching the track
• Proposed MUTCD language will recommend lane turn arrows be located a minimum of 100 feet in advance of the track
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TURNING DOWN THE TRACKS
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OXNARD, Calif. (KABC) – February 25, 2015
A 54-year-old truck driver from Yuma, Arizona was arrested on suspicion of felony hit-and-run after a Metrolink train headed toward Los Angeles struck his large pickup truck, which was hauling a trailer, on the tracks in Oxnard Tuesday. No fatalities were reported, Oxnard police said.
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Turning down tracks
Why?• GPS systems• Close proximity of
downstream intersection
• Break in lane lines• Distracted drivers• Limited visibility• Limited overhead
lighting
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Delineators & Lane Lines
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Delineators & Lane Lines
Proposed New MUTCD Language
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Section 8B.31 Edge Lines at Grade Crossings
Guidance:When used, edge lines (see Section 3B.06) and lane lines (see Section 3B.04) should extend to and across the track(s) to delineate the edge of the traveled way and the separation of traffic lanes across the track(s).
Option:The edge line may be omitted from the highway surface at a grade crossing if the surface cannot retain the application of the marking.
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Delineators & Lane Lines
Proposed New MUTCD Language
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Section 8B.31 Edge Lines at Grade Crossings
Option:Where recommended by a Diagnostic Team, raised pavement markers and/or tubular markers may be used to supplement the edge line markings to delineate the edge of the traveled way across the track(s).
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Delineators & Lane Lines
San Diego, California
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Delineators & Lane Lines
Bedford, New York
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Delineators & Lane Lines
Bedford, New York
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Delineators & Lane Lines
Hinsdale, Illinois
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PEDESTRIAN TREATMENTS
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Pedestrian Treatments
Provide sidewalks
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Pedestrian Treatments
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Pedestrian Treatments
Provide pedestrians gates
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Pedestrian Treatments
Provide pedestrians sidewalks
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Pedestrian Treatments
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Pedestrian Treatments
Provide pedestrians gates
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ROUNDABOUTS NEAR HIGHWAY-RAIL GRADE
CROSSING
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Roundabout Design/Location
Proposed New MUTCD LanguageSection 8C.17 Grade Crossings Within or In Close Proximity to Circular Intersections
Support: At circular intersections, such as roundabouts and traffic circles, that include or are within close proximity to a grade crossing, a queue of vehicular traffic could cause highway vehicles to stop on the grade crossing.
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Roundabout Design/Location
Proposed New MUTCD Language (cont.)Section 8C.17 Grade Crossings Within or In Close Proximity to Circular Intersections
Support: Among the actions that can be taken to keep the grade crossing clear of traffic or to clear traffic from the grade crossing prior to the arrival of rail traffic are the following: A. Elimination of the circular intersection, B. Geometric design revisions,C. Grade crossing regulatory and warning devices,D. Highway traffic signals,E. Traffic metering devices, F. Activated signs, or G. A combination of these or other actions.
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Roundabout Design/Location
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Roundabout Design/Location
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QUEUE CUTTER SIGNALS NEAR
HIGHWAY-RAIL GRADE CROSSING
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Queue Cutter Signals
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• A queue cutter signal is a traffic signal installed at a highway-rail grade crossing in a manner similar to a pre-signal.
• A queue cutter signal is not connected to or operated as a part of a downstream signalized intersection.
• The queue cutter’s function is to provide a means to prevent vehicles from stopping on the tracks or within the MTCD as a result of traffic queuing from a downstream signalized intersection.
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Queue Cutter Signals
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• Generally, a queue cutter signal is installed where the CSD exceeds 450 feet.
• A queue cutter signal installed less than 450’ from the downstream intersection WILL BE A PROBLEM.
• It is interconnected with the railroad warning system with a 3 to 5 second advance preemption time.
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Queue Cutter Signals
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Queue loops must use fail-safe design and vital loop processor system
Each loop wire has 2 independent loop circuits – a detect loop and a check loop
Queue cutter signal flashes red if there is a loop system failure
200’ - 250’ Variable
QueueLoops
QueueSignals
450’ Minimum, Longer is better
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Queue Cutter Signals
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Queue Cutter Signals
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Queue Cutter Signals
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Queue Cutter Signals
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Queue Cutter Signal Requirements• A “safety critical” vehicle detection system using self check
capabilities is used to activate the queue cutter control system.
• The vehicle detection system must detect the buildup of a queue of vehicles before the queue reaches MTCD.
• A queue cutter signal control system must have battery back-up .
• Any fault of the queue cutter system must result in a flashing red display.
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Queue Cutter Signals
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Queue Cutter Signal Requirements• The stop line location must be 40 feet in advance of
the queue cutter signals.
• Queue cutter signals can be located upstream or downstream from the railroad crossing similar to pre-signals.
• The queue cutter signals and support structures must be located to maintain visibility of the railroad flashing-lights.
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NEW TECHNOLOGY
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Stopped on Tracks Technology
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#1 Stopping on Tracks - New Technology Solution• Must use vehicle detection to identify a vehicle
stopped on tracks• Must be capable of “distracting a distracted
driver” to move a driver from the tracks• Wayside Horn produces focused high-intensity
audible warning at errant driver• Illuminated warning sign in driver’s immediate field of
view provides clear and specific instruction to “Get Off the Tracks”
• Don’t Block the Box markings and signage
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Stopped on Tracks Technology
51 GET OFF THE TRACKS signs are LEDs, illuminatedby vehicle detection system
GET OFF
TRACKS
GET OFF
TRACKS
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Stopped on Tracks Technology
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ANOTHER TRAIN COMING
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“Another Train Coming”Enhances safety by providing additional visual and audio warning messaging at grade crossings with multiple tracks to direct pedestrian attention to the approach of trains that may not be visible
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Pedestrian Active Warning Sign
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CLOSING THOUGHTS
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Even when you do all you can, may not be enough:May 15, 2016 – Wake County, North CarolinaA speeding Amtrak train hit a car stuck on the tracks in Wake County Sunday morning, and it's not the first time this driver escaped with her life.
Witnesses told authorities a woman's vehicle appeared to be stuck on the tracks after running through a crossing arm, despite it being in the down position with warning lights and bells activated.
Emergency workers said the same car and the same woman crashed through the same crossing arm two weeks ago. That day, authorities said she sped across the tracks and struck a tree to avoid being hit by the train.
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QUESTIONS
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Saving lives one crossing at a timeTim Oster 817‐886‐[email protected]
Nicole Jackson 682‐730‐[email protected]
David Dokupil 817‐886‐[email protected]