TS Program DAC Presentation

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City of San Jose Traffic Signal Program Overview
Presented by Jaime O. Rodriguez, TE
Disabled Advisory Committee (DAC) April 12, 2004
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Presentation Outline

• Traffic Signal Program Budget Activities
• Design Practice and Standards
• New Traffic Signal Equipment
• Traffic Signal Timing Practice
• New Installation Major Modification Criteria
• Open Discussion/Questions

Disabled Advisory Committee (DAC) April 12, 2004
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Program Budget Activities
New Installations Major Modifications
4,250,000

• Staff Design of 10 12 Projects/Year
• Property Acquisition
• Inspection Services
• Survey Services
• Utility Relocation

Disabled Advisory Committee (DAC) April 12, 2004
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Program Budget Activities
Minor Modifications
550,000

• Up to 180 Improvements/Year
• Traffic Signal Loop Repair Maintenance
• Vehicle Pedestrian Indication Upgrades
• Pedestrian Mobility Enhancements
• Utility Relocation

Disabled Advisory Committee (DAC) April 12, 2004
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Program Budget Activities
Developer-Assisted Funding
200,000

• Projects Vary Upon Development Activity
• Complete projects off-set by contributions
  collected by developers.
• Evergreen Valley Development
• Balbach Market TS Installation, FY04-05

Disabled Advisory Committee (DAC) April 12, 2004
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Program Budget Activities
Total Traffic Signal Program
4,250,000
New Modification Projects
550,000
Minor Modifications
200,000
Developer-Assisted Funding
5,000,000
Disabled Advisory Committee (DAC) April 12, 2004
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Design Practice Standards

• Manual of Uniform Traffic Control Devices
  (MUTCD)
• California Traffic Manual

Design Rules Practice

• Always meet ADA Compliance on New Projects
• Minimum of Two Constantly Visible Vehicle
  Indications for all approaches.
• One Constantly Visible Pedestrian Indication for
  each crossing direction.

Disabled Advisory Committee (DAC) April 12, 2004
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ADA Standards
Insert Picture of New Ped Ramp Santa Clara 6th
Curb Ramps

• ADA Compliant centered on each return

• Grooved banding for visually impaired

Pedestrian Push Buttons
Insert Picture of Push Button

• 2-inch Actuators, CSJ Bumblebee Brand Standard

• Within 5-ft of crosswalk, goal in practice

Disabled Advisory Committee (DAC) April 12, 2004
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ADA Standards
Insert Picture of Audible Ped Signal 4th St
Garage
Audible Signals

• Installed at all new signals with major
  pedestrian generators

• Upon Request if warranted

Insert Picture of Streetlight Improvements on
The Alameda
Street Light Improvements

• Install or Upgrade Intersection safety lighting
  on all major projects

Disabled Advisory Committee (DAC) April 12, 2004
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Audible Pedestrian Signals
Installation Criteria

• Pedestrian Generators (disabled centers, schools,
  public transit)
• Push Buttons (pretimed vs actuation). Are they
  working properly?
• Major Streets Widths
• Continuous, Unobstructed Crosswalks Indication
  Visibility
• Request from Visually-Impaired Patron

Disabled Advisory Committee (DAC) April 12, 2004
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Audible Pedestrian Signals
Installation Time

• If criteria met during time of design for new or
  major modification project, automatic.
• Funding for up to 10 locations per year to
  respond to customer requests. Denied requests
  are presented at DAC meetings.
• Requests take about 6 to 8 weeks.

Department of Transportation [phone]
Disabled Advisory Committee (DAC) April 12, 2004
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Pedestrian Countdown Signals
Background

• CSJ evaluation for the California Traffic Control
  Devices committee (CTCDC) in 2001
• MUTCD 2003 discusses use recommends operation
  consistency. Still not California approved.
• State of California to adopt MUTCD in August 04
  with supplement (Countdown not discussed in
  supplement yet).

Disabled Advisory Committee (DAC) April 12, 2004
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Pedestrian Countdown Signals
CSJ Practice

• All new signals major modifications in
  Downtown, will use the Countdown Modules.
• Deployment outside of Downtown will occur after
  Caltrans adoption of the device.

Equipment Operation Requirements

• Filled Upraised Hand/Walking Person Indications
• Double Row Countdown
• Start counting at Flashing Dont Walk. Terminate
  at the end of the Flashing Dont Walk (begin of
  yellow)

Disabled Advisory Committee (DAC) April 12, 2004
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New PPB Equipment
Tactile Push Buttons

• Vibrating actuator w/directional arrow when
  WALK indication is in effect.
• Ambient programmable audible messages.

Early Model Install in Santa Cruz
CSJ to Evaluate. Recommendations for test site
accepted.
Disabled Advisory Committee (DAC) April 12, 2004
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New PPB Equipment
Braille Labels Signs

• Useful information for visually-impaired.

Challenges

• Special-order. Cost.
• Maintenance.
• Pole placement at existing signals.

Disabled Advisory Committee (DAC) April 12, 2004
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Pedestrian Signal Timing
Pre-Timed Signals
Insert Picture Of Santa Clara St Green

• Downtown SJ, Julian St to Reed St, 4th St to
  Route 87
• Closely spaced intersections
• Predictable traffic pedestrian patterns

Actuated Signals

• Intermittent traffic pedestrian patterns
• Minimize delays to vehicles pedestrians

Disabled Advisory Committee (DAC) April 12, 2004
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Pedestrian Signal Timing
Pedestrian Scramble
Insert Picture Of 9th San Fernando

• Provide pedestrians with ownership of
  intersection
• Effective at heavy pedestrian traffic locations

Challenges

• Compliance
• Delay to vehicles pedestrians
• Modification cost

Disabled Advisory Committee (DAC) April 12, 2004
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Pedestrian Signal Timing
Early Pedestrian Release
Insert Picture Of Kieley Kaiser Dr

• Provides pedestrians with early access to the
  intersection before conflicting turning movements.

Challenges

• Traffic Signal Controller function.
• Compliance

Disabled Advisory Committee (DAC) April 12, 2004
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Signal Timing
Program

• Aggressive grant application process for projects
• Signal Central for synchronization response

Active Projects

• SJ LRT Signal Retiming (xx)
• ITS San Jose Signal Retiming (xx)

Disabled Advisory Committee (DAC) April 12, 2004
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Signal Timing Development
Walking Person Display
Insert Picture Of Pedestrian Crossing Street

• 5-Sec Min. Display

Flashing Dont Walk Display

• Crosswalk length/4 Sec/ft
• Terminate FDW at Beginning of Yellow (end of
  green)

Disabled Advisory Committee (DAC) April 12, 2004
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Traffic Signal Criteria
New Installations Must Meet CA Traffic Signal
Warrants

• Warrant 1 Min. Vehicle Volume
• Warrant 2 Interruption of Continuous Traffic
• Warrant 3 Minimum Pedestrian Vol
• Warrant 4 School Areas
• Warrant 5 Progressive Movement
• Warrant 6 Accident Experience
• Warrant 7 Systems Warrant
• Warrant 8 Combination of Warrants
• Warrant 9 Four Hour Volume Warrant

• Warrant 10 Peak Hour Delay
• Warrant 11 Peak Hour Volume

Disabled Advisory Committee (DAC) April 12, 2004
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Traffic Signal Criteria
Left-Turn Phasing Warrant
Insert Picture Of LT Indication

• Accidents
• Delay
• Left Turn vs Through Volume
• Influence Factors

Disabled Advisory Committee (DAC) April 12, 2004
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CSJ Traffic Signal Program
Design, Equipment Upgrades, Signal Timing
Questions
Department of Transportation 4 North Second
Street, Ste. 1000 San Jose, CA 95113 (408)
277-3743 traffic.signals_at_sanjoseca.gov
Disabled Advisory Committee (DAC) April 12, 2004