Passenger Transport June 2017 Vol 75 No 11 - 22

2017 RAIL CONFERENCE

WMATA Metrorail Using 'Big Data' to Install Cellular Service

W

ashington Metroinvolves installing the LiDAR
politan Area Transit
scanning equipment on a
Authority (WMATA)
vehicle traveling 5-10 miles
is installing a large cellular
per hour through the system,
antenna phone service system
which would collect data in a
in its Metrorail system, using
matter of days.
a"leaky" coax cable technology
"In the U.S., mobile
that will ensure all riders have
LiDAR mapping technology
reliable cell phone service.
had not been used in tunThe system, accessible to a
nels on any known project
consortium of cellular service
more than five miles in
companies (including major
length," Falken said. Metrocarriers) will be funded by
rail engaged Maser ConsultMetrorail LiDAR display showing cable placement and data extraction tool.
the cellular carriers, Metrorail
ing, P.A., an engineering firm
officials said. (In conjunction
specializing in geospatial serwith the cellular system installation,
data of the subway's current condition.
vices, to test the mobile technology on a
Metrorail will develop an FTA-funded
Such data is essential to protect the train
five-mile section.
cable system to upgrade internal
clearance envelope. Anything installed
communications.)
along the subway tunnels can be within
The cellular system installation
no more than two inches from the
involves a cable management system
envelope. We decided the best way to
platform that will hold about one milget accurate condition data is through
lion feet of cables in Metrorail's 104
LiDAR scanning technology."
miles of subway tunnels.
The most accurate LiDAR scans are
Metrorail Assistant Chief Engineer
through stationary terrestrial equipment
Don Falken, a geomatics expert, said,
setups; however, this process would
"One of the biggest challenges of the
take months to accomplish. Instead,
project was not having accurate 'as-built'
Metrorail chose mobile scanning, which
ADDRESSING MOBILITY concerns to Naval Station Norfolk (NSN)-
the largest naval base in the world and
the region's largest employment center-is a vital regional interest.
The base and its nearby facilities host
60,000-70,000 sailors, contractors and
civilians daily, with about 30 percent of
base commuters living in Norfolk, home
of Hampton Roads Transit (HRT). Congestion on a major interstate and the
surrounding arterial roads leading to the
base is a daily occurrence.
In 2015, the Naval Station Norfolk
Transit Extension Study evaluated
potential transit extensions to the base.
It identified an east and west corridor
option, each with a different purpose
and need. Subsequently, FTA directed
HRT to identify a reasonable alternative
in the west corridor before entering the
environmental impact review.
A new federally funded study-the
Norfolk Westside Transit Study, a joint
effort exploring a potential high-capacity
transit connection between HRT's The
Tide light rail and NSN-will focus on
this task. The 12-month effort, which
began in April, will identify:
n A solution that addresses the
defined purpose and need for highcapacity transit extending to the

The demonstration was successful.
Next, the engineering firm made the
"big data" readily available to Metrorail
engineers and the cellular companies
using uGRIDD infrastructure data management service, which allows users
to view, measure, extract and download information in a secure server
environment.
The service, along with other software, enables engineers to accurately
calculate the exact lengths of the cables
required so they can be terminated in
the factory rather than in the field after
installation.
Metrorail expects to have the new
cellular service operational by 2022.

Hampton Roads Transit
Studies High-Capacity Options
To Naval Station Norfolk

Providing
Providing 21st
21st century
century transit
transit

SOLUTIONS
to
to BalƟmore
BalƟmore and
and beyond
beyond

Navy base in the western part of
the city;
n An alignment that connects The
Tide to the base in a cost-effective
and sustainable manner;
n A solution that can effectively
compete for federal funding; and
n A resilient alignment solution
that addresses serious flooding
challenges.
The base, while a critical destination, is not the study's only focus. It also
will examine the transportation needs
of other regional destinations, including Old Dominion University, national
historic neighborhoods, commercial and
retail areas and adjacent communities.
A high-capacity public transit connection-such as light rail, streetcar or
BRT-between The Tide and NSN promises to make travel time more reliable
and provide a reasonable transportation
alternative to driving alone.

Rail Vehicle
Engineering

Rail Systems
Engineering

www.ltk.com

22 | Passenger Transport

Revenue
Systems and
Technology

OperaƟons
Planning and
SimulaƟon

Denver's Regional Transportation District recently marked the first anniversary of the University
of Colorado A Line, which has carried five million passengers and traveled 1.2 million miles.
The 23-mile commuter rail line features eight stations, from Union Station to Denver International
Airport. "The opening of the
University of Colorado A Line
launched a new era in public
transit in the region as it
connected metro Denver to
the world," said RTD General
Manager and CEO Dave
Genova. "The community
and economic benefits of
connecting downtown to the
airport are already beginning
to show."

Photo courtesy of Denver RTD

RTD Says 'Happy Birthday, A Line'


http://www.ltk.com

Table of Contents for the Digital Edition of Passenger Transport June 2017 Vol 75 No 11

Passenger Transport June 2017 Vol 75 No 11 - 1
Passenger Transport June 2017 Vol 75 No 11 - 2
Passenger Transport June 2017 Vol 75 No 11 - 3
Passenger Transport June 2017 Vol 75 No 11 - 4
Passenger Transport June 2017 Vol 75 No 11 - 5
Passenger Transport June 2017 Vol 75 No 11 - 6
Passenger Transport June 2017 Vol 75 No 11 - 7
Passenger Transport June 2017 Vol 75 No 11 - 8
Passenger Transport June 2017 Vol 75 No 11 - 9
Passenger Transport June 2017 Vol 75 No 11 - 10
Passenger Transport June 2017 Vol 75 No 11 - 11
Passenger Transport June 2017 Vol 75 No 11 - 12
Passenger Transport June 2017 Vol 75 No 11 - 13
Passenger Transport June 2017 Vol 75 No 11 - 14
Passenger Transport June 2017 Vol 75 No 11 - 15
Passenger Transport June 2017 Vol 75 No 11 - 16
Passenger Transport June 2017 Vol 75 No 11 - 17
Passenger Transport June 2017 Vol 75 No 11 - 18
Passenger Transport June 2017 Vol 75 No 11 - 19
Passenger Transport June 2017 Vol 75 No 11 - 20
Passenger Transport June 2017 Vol 75 No 11 - 21
Passenger Transport June 2017 Vol 75 No 11 - 22
Passenger Transport June 2017 Vol 75 No 11 - 23
Passenger Transport June 2017 Vol 75 No 11 - 24
Passenger Transport June 2017 Vol 75 No 11 - 25
Passenger Transport June 2017 Vol 75 No 11 - 26
Passenger Transport June 2017 Vol 75 No 11 - 27
Passenger Transport June 2017 Vol 75 No 11 - 28
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