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A Line (RTD)

A Line
East Line view (14513510376).jpg
Peña Boulevard Bridge
Overview
Type Commuter Rail
System Regional Transportation District
Status Operational
Locale Denver Metropolitan Area
Termini Union Station
Denver International Airport
Stations 8
Website Official website
Operation
Opened April 22, 2016 (2016-04-22)
Owner Regional Transportation District
Operator(s) Denver Transit Partners
Rolling stock Hyundai Rotem Silverliner V
Technical
Line length 23.5 mi (37.82 km)
Track gauge 4 ft 8 12 in (1,435 mm) standard gauge
Electrification Overhead lines, 25kV AC 60 Hz
Route diagram
Denver International Airport Denver Airport
E-470
61st & Peña
40th & Airport Blvd / Gateway Park
I-70
I-225
Peoria
 R  Line (2016)
Central Park
SH 2 (Colorado Boulevard)
40th & Colorado
38th & Blake
 L  Line (TBD)
 B  Line,  G  Line (2016),  N  Line (2018)
Amtrak Amtrak California Zephyr
Union Station Amtrak  B  ( G  2016) & ( N  2018)
 C ,  E , &  W  Lines

The A Line, also known as the East Rail Line during construction and officially the University of Colorado A Line for sponsorship reasons, is a Regional Transportation District (RTD) commuter rail line serving Denver and Aurora, Colorado, operating between Downtown Denver and Denver International Airport (DIA).

Mass transit has been under consideration for the corridor between Downtown Denver and Denver International Airport since the latter was proposed in the 1980s. The project gathered momentum in 1997 when a Major Investment Study was completed for the corridor, encouraging fixed-guideway mass transit (light rail or commuter rail), highway widening and general improvements. The project was approved as part of the FasTracks transit expansion package in November 2004, went through regulatory processes and was approved by the Federal Transit Administration in November 2009. In July 2007, it was decided to use electric instead of diesel propulsion over speed and air pollution concerns.

RTD designated the line with the letter “A”, denoting service to the airport and Aurora. Groundbreaking for the A Line was held on August 26, 2010 As the second line of RTD’s FasTracks expansion plan, the East Corridor was constructed and operated under the Eagle P3 public-private partnership. The first electric multiple unit railcars were pulled along the route on April 3, 2015, commencing testing and commissioning of the line. Revenue service began on April 22, 2016. A software problem in the equipment closing the crossing gates resulted in the use of traffic guards and frequent delays for nine months after the opening.


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Wikipedia

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