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Red Line South:Alternatives During Construction
Elsa Gutierrez
General Manager Service Planning
Chicago Transit Authority (CTA)
Chicago, IL
Chicago Transit Authority (CTA)
• Second largest transit agency
• Operations began in 1947
• City of Chicago and 35 suburbs
• 1.7M rides (avg. weekday daily)
• 83% of public transit trips
• 128 bus route and 8 rail lines
• 1,865 buses and 1,356 rail cars
• Rail connect to 2 major airports
• 24-hour, 7-days a week service
Overview of Red Line South
• Line opened in 1969
• Last major track renewal occurred in the mid-1980s
• Crossovers replaced in 2004
• Tracks were beyond expected lifespan
• 9 rail stations
• 50,000 daily weekday average passengers
Need for Construction
• Track more than 40 years old
• Nearly 40 percent of Dan Ryan Branch was slow zone
• Slower trains = longer commutes + increase operation costs
• Improvements saved up to 20 minutes (round-trip)
• $425 million construction project
Decision: 5 months or 4 years?
5 Months
• Full Closure
• 20 minute travel savings by end of 2013
• Most efficient and cost-effective schedule
• More consistency in construction work –better final product
4 Years
• Weekend-only closures of various portions
• Slow zones continue (and increase) thru 2016
• Increase cost by $75M
• Work done in segments which may reduce consistency
Customer Travel Patterns
• Who is impacted?
• Where are they going?
• What obstacles do they face?
• How can we provide alternatives?
1. Rail Options
2. Free Shuttle
3. Route Extensions
4. Route enhancements
Rail destinations for 69th-95th riders
16%
22%
32%
17%
Other = 13%
New Rail Alignment
• Red Line trains:
• Howard to/from Ashland/63rd on the elevated tracks south of Roosevelt
• Green Line trains:
• Harlem/Lake to/from Cottage Grove
• Some AM trains turn at Roosevelt
• Some PM trains operate counter-clockwise around the Loop
Free Bus Shuttle
• Limited rail alternatives
• Accommodate passenger demand
• Simulate Red Line service
1. Maintain frequency
2. Maintain loads
3. Maintain travel time
4. Maintain 24-hour service
Garfield (Elevated) Transit Hub
Number of Daily:
Pre-Construction
During Construction Increase
Passengers 1,500
Trains 236
Buses 304
15,000 1,000%
1,256 413%
615 260%
Bus Shuttle Statistics
• Bus Requirements
61 – 60ft buses (+spares)
10 – 40ft buses (+spares)
• 5,000 vehicle hours weekly
• Added 1.3% traffic volume on Dan Ryan expressway
• 17,300 daily weekday riders
Bus Route Extensions
• Maintain connectivity to rail network
• Deviated or extended to serve Garfield or Ashland Branch of the Red Line
• Service to closed Red Line stations were temporarily suspended
Route Enhancements
• Used O-D transit pass data to model trip decisions
• Created half-mile grid zones for rider origins
• Focused on north-south routes that feed Ashland branch to minimize transfers
• Mostly peak periods
• Short-turns focused on areas with highest demand
Lessons Learned
• Provide outreach material early and often
• Develop strong relationship with Bus/Rail Operations
• Include flexibility in service plan
• Buses were reallocated to heavily used routes
• Boarding and alighting locations were shifted
• Develop multiple and robust external partnerships
• Team work, team work, team work.
Red Line South Improvements
• 300 million pounds of ballast
• 7.8 million pounds of rail
• 60,000 rail ties
• 495 announcement speakers
• 275 security cameras
• 87 train tracker displays
• 36 assistance phones
• 3 elevators, 100% accessible
• 0 slow zones
Red Line South:Alternatives During Construction
Elsa Gutierrez
Chicago Transit Authority (CTA)
General Manager Service Planning
Chicago, IL
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