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![Page 1: ATN Applications: Montgomery County, Maryland Transit Opportunities Advanced Transit Association Annual Technical Meeting January 11, 2014 College Park,](https://reader035.fdocuments.net/reader035/viewer/2022062619/55177ef455034645368b5107/html5/thumbnails/1.jpg)
ATN Applications:
Montgomery County, MarylandTransit Opportunities
Advanced Transit Association Annual Technical MeetingJanuary 11, 2014
College Park, Maryland
Robert Johnson
R. E. Johnson ConsultingRockville, Maryland
www.REJConsult.com
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Basic Assumptions
• Proven technology that can be deployed immediately
– 25 mph (40 kph) maximum speed
– Small networks
• Shared vehicles, especially during peak periods, to increase capacity
• All seated -- allows higher acceleration and jerk levels, which means shorter guideway ramps
• 4-passenger vehicles – a small vehicle allows a narrow, low-cost guideway
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Example of Narrow ATN Guideway
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Montgomery County, Maryland
• 998,000 population
• $94,000 median household income
• Immediately Northwest of Washington, DC
• 21% population growth expected by 2040
• 39% employment growth expected by 2040
• Served by Red Line of Washington Metrorail
• Peak hour flows to/from I-270 corridor
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Planned Montgomery County Bus Rapid Transit System
• Corridor Cities Transitway, Lines 1-10
• 102 miles, 79% dedicated lanes
• 2011 Parsons Brinckerhoff study recommended guided buses in some corridors
• Selected peak link volumes:
– Line 7 (Randolph Rd) western section: 900 pphpd
– Line 9 (US 29): 1475 pphpd
• Issue: Finding right-of-way for dedicated bus lanes
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Human Genome Sciences Buildings at the Shady Grove Life Sciences Center
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CCT ATN System Benefits
• Improve access for many (but not all) Life Sciences Center trips
• Avoid two-way bus crossing of major arterial at two locations
• Shorter trip times for CCT riders who bypass LSC
• Allow uniform CCT headways
• LSC internal circulation
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Automated Transit Line to Replace BRT Line 7 Between Branches of the Red Line
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Center Platform Station GeometryAssuming All-Seated Passengers
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Cameron Street in Silver Spring CBD
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Summary of ATN Systems
Lane miles* Stations
Corridor Cities Transitway
4 6
BRT Line 7 (Randolph Rd)
8 5
BRT Line 9 (US 29)
9 3
*Not including on/off ramps, vehicle storage, etc.
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