395 - GSA Development of St. Elizabeths Campus

Contents1 INTRODUCTION ...................................................................................................................................... 1-11.1 PROJECT DESCRIPTION AND LOCATION .............................................................................................................. 1-11.2 PURPOSE AND NEED ...................................................................................................................................... 1-61.3 DATA SOURCES ............................................................................................................................................. 1-92 SUMMARY OF FINDINGS ......................................................................................................................... 2-12.1 EXISTING TRAVEL PATTERNS ............................................................................................................................ 2-12.1.1 Regional Trips or Patterns during Peak Periods ................................................................................... 2-12.1.2 Local Trips or Patterns during Peak Periods ......................................................................................... 2-12.2 EXISTING CONDITIONS .................................................................................................................................... 2-22.2.1 Overview of Conditions ........................................................................................................................ 2-22.2.2 Causes of Congestion ........................................................................................................................... 2-32.2.3 Deficiencies .......................................................................................................................................... 2-42.3 FUTURE CONDITIONS AND NEEDS ..................................................................................................................... 2-52.3.1 Socioeconomic ..................................................................................................................................... 2-62.3.2 Travel Patterns ..................................................................................................................................... 2-62.3.3 Alternatives Eliminated ........................................................................................................................ 2-62.3.4 Future Needs ........................................................................................................................................ 2-72.4 PERFORMANCE OF NO-BUILD, BUILD, AND NO ACTION TRANSPORTATION ALTERNATIVES .......................................... 2-72.4.1 No-Build Alternative ............................................................................................................................. 2-72.4.2 Build Transportation Alternative 2 ..................................................................................................... 2-102.4.3 Build Transportation Alternative 2 Modified ..................................................................................... 2-112.4.4 No Action Alternative ......................................................................................................................... 2-132.4.5 Future Needs ...................................................................................................................................... 2-143 EXISTING CONDITIONS ............................................................................................................................ 3-13.1 PREVIOUS STUDIES AND EVALUATIONS .............................................................................................................. 3-13.1.1 St. Elizabeths East Campus Framework Plan (2008)............................................................................ 3-13.1.2 Final Environmental Impact Statement (FEIS) for the consolidation of DHS Headquarters at St.Elizabeths (Nov. 2008) and Record of Decision (Dec. 2008) .............................................................................. 3-13.1.3 Master Plan for the Development of the West Campus (2008) ........................................................... 3-13.2 ROADWAY NETWORK ..................................................................................................................................... 3-23.2.1 Limited Access Facilities ....................................................................................................................... 3-23.2.2 Local Street Network and Arterials ...................................................................................................... 3-23.2.3 Existing Geometric and Roadway Conditions ...................................................................................... 3-83.3 TRAVEL PATTERNS ....................................................................................................................................... 3-133.4 PUBLIC AND SHARED TRANSPORTATION FACILITIES ............................................................................................ 3-133.4.1 Rail ..................................................................................................................................................... 3-133.4.2 Bus ..................................................................................................................................................... 3-133.4.3 Sidewalk and Curb Assessment .......................................................................................................... 3-163.4.4 Pedestrian-Related Signage ............................................................................................................... 3-193.4.5 Bicycle Facilities ................................................................................................................................. 3-193.5 EXISTING TRAFFIC OPERATIONS AND ANALYSIS.................................................................................................. 3-193.5.1 Existing Traffic Volumes ..................................................................................................................... 3-193.5.2 Daily Traffic Volumes ......................................................................................................................... 3-193.5.3 Intersection Turning Movement Volumes .......................................................................................... 3-253.5.4 Freeway Volumes ............................................................................................................................... 3-25I