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Rail System Infrastructure Rehabilitation

while the system is closed. When major maintenance work is needed, Metro can take one track out of service in each direction. Trains moving in both directions will then take turns sharing the section of track through the work zone. This is known as single-tracking. To the extent possible, Metro takes advantage of low rail ridership on three-day holiday weekends to save on late-night maintenance costs and reduce single-tracking. Although performing major work when the system is closed or on weekends has minimized customer impacts, Metro’s future mainte- nance needs will exceed available track work hours.

The Rail System Infrastructure Rehabilitation Program is designed to streamline upgrades throughout the Metrorail system, expand available work hours by coor-

dinating work at specific segments, increase productivity during those track work hours and minimize customer delays. The schedule by segment (as of July 2008) is shown in the Figure below. The basic concept is to accomplish all rehabilitation work at a specific segment using one contract. It takes several hours to secure a work area after closing and before opening the system for service. When this requirement is added to the time necessary to swap work crews between different c o n t r a c t o r s , t h e t o t a l t r a c k w o r k h o u r s i s n o t a b l y d e c r e a s e d . T h e n e w R a i l S y s t e m

Infrastructure Rehabilitation Program will coordinate work at a segment thus en- abling maintenance crews to spend more time performing the necessary work. Concentrating the work area versus spreading the work across the 106.3 mile system will also result in more efficient use of safety, escort and inspection person-

nel. The overall impact will be more work completed under a shorter timeframe at a lower cost.

Metro Rail System Infrastructure Rehabilitation Schedule

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

Dupont to Silver Spring

Dupont to Grosvenor

Grosvenor to Shady Grove Silver Spring to Glenmont

National Airport to New Carrollton

Rosslyn to Vienna National Airport to Huntington Franconia to Springeld & Largo

U Street to Anacostia

Fort Totten to Greenbelt

U Street to Fort Totten Anacostia to Branch Avenue

Source: July 24, 2008 presentation to Planning, Development and Real Estate Committee

Investment Category: Performance 35

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