ME home
 
  SME FaceBook SME Twitter SME LinkedIn RSS Feed

Subscriber or
SME Member Log On

WEB-ONLY CONTENT

Go to SME eNEWS

MINING INDUSTRY EVENTS

11th International Mine Ventilation Congress  - Conference
Sep 14, 2018 - Sep 20, 2018
XXIX International Mineral Processing Congress  - Conference
Sep 15, 2018 - Sep 21, 2018
SEG 2018: Metals, Minerals and Society  - Conference
Sep 22, 2018 - Sep 25, 2018
14th Symposium of Continuous Surface Mining  - Conference
Sep 23, 2018 - Sep 26, 2018

METAL PRICES


Au
Ag
Pt
Pd
Ni
Cu
Al
Pb

AGGREGATES
AND MINERALS
MARKETPLACE


http://aggregatesmineralsmarketplace.com
The Mining Engineering, SME and NSSGA
Online Buyers Directory Site
The Online Global Mining and Minerals Library Site
June 2018
Volume 70    Issue 6

The future of transit tunneling in Washington, D.C.

Mining Engineering, 2018, Vol. 70, No. 6, pp. 94-96
Zelenko, Brian; Cordes, Harald; Hansmire, William


PREVIEW:

By the time the latest expansion of the Washington Metropolitan Area Transit Authority (WMATA) system, known locally as Metro and which opened in 1976, is completed in 2020, the system will serve 97 stations and operate on 188 km (117 miles) of track on six interconnecting lines. Metro provides a critical transportation link to a population of approximately six million people within a 3,900-km2 (1,500-sq-mile) Washington Metropolitan area and has allowed job growth to expand to all corners of the region. In the 1950s and 1960s, when the system was first conceived and construction began, most jobs were centered in downtown Washington, and most of the workforce commuted by bus or car. Today, transit-oriented development has increased residential, commercial and government facilities near most of the existing 91 stations increasing the importance of the Metro system as a critical transportation link for the region. According to recent American Public Transportation Association (APTA) data, Metro is the second busiest transit system in the United States (after New York City’s transit system). 



Please login to access this article.

OR

If you are not an SME member, you can join SME by clicking the button below.