Your SlideShare is downloading. ×
0
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Century City Station Options - 11-19-11 Metro Board P&P Committee
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Century City Station Options - 11-19-11 Metro Board P&P Committee

1,040

Published on

Source: http://www.metro.net/projects_studies/westside/images/2011_1019_planning_committee.pdf

Source: http://www.metro.net/projects_studies/westside/images/2011_1019_planning_committee.pdf

Published in: Business, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
1,040
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Westside Subway ExtensionCentury City Area Station OptionsOCTOBER 19, 2011
  • 2. Westside Subway Extension October 28, 2010 Board ActionOctober 28, 2010 - MTA Board approved the Draft EIS/EIR with station options at Century City, Westwood/UCLA and Westwood/VA Hospital stations.  Board approved Motion (Yaroslavsky) that during the Final EIS/EIR preparation, staff fully explore the risks associated with tunneling under the [Beverly Hills] High School, including but not limited to the following: risk of settlement, noise, vibration, risks from oil wells on the property, impact to use of the school as an emergency evacuation center, and overall risk to student faculty and community; and  Staff continue to work closely with the community and the City of Beverly Hills, and Century City and Westwood neighborhoods and provide them information from these analyses as soon as they become available.  Directed staff to analyze the possibility of moving the subway tunnel in order to avoid all school buildings and avoid any future plans to remodel Beverly Hills High School. 2
  • 3. Study and Analysis Century City AreaMetro conducted two studies  Tunnel Safety  Fault InvestigationFault Experts: Metro’s Tunnel Advisory Panel: Independent Review Panel:James Dolan Ed Cording Lloyd CluffThomas Henyey Geoff Martin Lucile JonesThomas Rockwell Harvey Parker Paul Jennings Thomas O’Rourke 3
  • 4. Study Area Alignments (LPA) 4
  • 5. Century City Station LocationsStation on Santa MonicaBoulevard shifted east to avoidactive Santa Monica Fault Zone 5
  • 6. Tunneling can be accomplished safely• Demonstrated on Gold Line Eastside Extension (2006)  Similar: diameter, oil field, gassy soil, seismic area, depth  Similar soils: dense and suitable for tunnel boring machine (TBM)• Pressurized closed-face TBM minimizes ground movement  Little to no ground settlement Little to no impact on buildings  Gas-and-water-tight final lining installed within TBM  Tunnel ventilation prevents gas buildup during tunneling and operations 6
  • 7. Tunneling can be accomplished safely• Noise and vibration during tunneling and operations  Will be specified, monitored, and controlled to existing criteria  Substantiated complaints will be addressed and mitigated• Investigation of oil wells  Conducted investigation on BHHS Campus  Further investigation (magnetic probing) to confirm tunnel area clear of wells  Proven methods exist to treat oil well casings• Project requires tunneling through active faults  Many precedents for successful tunneling through active faults  Pressurized face TBMs can tunnel through fault zones safely  Installed lining will be designed to accept fault offsets without collapse 7
  • 8. Safe Tunneling beneath Beverly Hills HighSchool• Many alignments evaluated, none can avoid all BHHS buildings  Selected best for BHHS  Passes only beneath South Wing of Building B  Not below gym/pool building• Depth allows future development (including deep basements and underground parking)• Presence of tunnels  Does not affect overlying structures during an earthquake  Does not impact use as emergency evacuation center or shelter  Will not pose new risks to students, faculty and community 8
  • 9. Fault Locations Westside Subway Study Area 9
  • 10. Fault Zones Century City Area 10
  • 11. Santa Monica Boulevard and Constellation OptionsSanta Monica Boulevard Fault zone extends sub-parallel to Santa Monica Boulevard - area of complex faulting East station location is within West Beverly Hills Lineament/Newport Inglewood Fault zoneConstellation Boulevard Location is south and west of fault zones No evidence of faulting at station location 11
  • 12. Conclusions• Santa Monica Boulevard  Fault zones at both proposed station sites  Neither site acceptable for station• Constellation Boulevard  No evidence of faulting at station location  Location is acceptable for station• Tunnels can be safely constructed under Beverly Hills, Beverly Hills High School, Century City, and Westwood 12
  • 13. Independent Review Panel Independent Review Panel: Lloyd Cluff Lucile Jones Paul Jennings Thomas O’Rourke 13
  • 14. Next Steps • Study reports: www.metro.net/westside • Late 2011/Early 2012: Final EIS/EIR distribution for 45 day public review period • Early 2012: Metro Board Project approval 14

×