Error message

  • Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /itss/home/railtransport/public_html/includes/file.phar.inc).
  • Deprecated function: TYPO3\PharStreamWrapper\Manager::initialize(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /itss/home/railtransport/public_html/includes/file.phar.inc).
  • Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $resolver as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /itss/home/railtransport/public_html/includes/file.phar.inc).
  • Deprecated function: TYPO3\PharStreamWrapper\Manager::__construct(): Implicitly marking parameter $collection as nullable is deprecated, the explicit nullable type must be used instead in include_once() (line 19 of /itss/home/railtransport/public_html/includes/file.phar.inc).
  • Deprecated function: UpdateQuery::expression(): Implicitly marking parameter $arguments as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: MergeQuery::expression(): Implicitly marking parameter $arguments as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQueryInterface::getArguments(): Implicitly marking parameter $queryPlaceholder as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQueryInterface::preExecute(): Implicitly marking parameter $query as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQueryExtender::getArguments(): Implicitly marking parameter $queryPlaceholder as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQueryExtender::preExecute(): Implicitly marking parameter $query as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQuery::getArguments(): Implicitly marking parameter $queryPlaceholder as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).
  • Deprecated function: SelectQuery::preExecute(): Implicitly marking parameter $query as nullable is deprecated, the explicit nullable type must be used instead in require_once() (line 1884 of /itss/home/railtransport/public_html/includes/database/database.inc).

Grade Crossing Jumper Cables (EE)

This group investigated the operation of grade crossing signal systems, and the jumper cables used to disable them during maintenance activities.  The end result is a redesigned jumper system that can sense the approach of a train and reactivate the crossing even when the jumper is still in place.

Co-Principal Investigator(s): 
Will Dallman
Ron Campbell
Michael Mandalari
Katherine May
Project Schedule: 
September, 2013 to May, 2014
Project Category: 
Status: 
Complete