Today’s Agenda
• Project Goals & Schedule • Existing Conditions & Proposed Changes • Traffic Model • Baseline Design • Design Details
Project Goals
• Complete key link in bike network • Dedicated on-street space for cyclists • Meet schedule and budget commitments • Not preclude future improvements
Project Schedule Jan
August
Feb
March
July
Project Initiation Stakeholder Outreach
– DDP, MBAC Design Alternatives
Stakeholder Update Modeling/Parking Analysis RTD Outreach Final Design Implementation
May
June
Fall 11/ Spring 12?
Project Schedule Jan ‘11
Summer ‘13
Feb ‘11
Mar ‘11
Jan ‘13
Project Initiation Stakeholder Outreach
– DDP, MBAC Design Alternatives
RTD Outreach Stakeholder Meeting Final Design Implementation
Dec ‘12
Summer ‘11-’12 perform full traffic analysis of 15th St
Existing Conditions (for project limits)
• 50’ curb-to-curb • Bike
– 100 peak hour • Bus
– 60+ peak hour – 9 stops on right side
• X,Y, Z pattern
• Automobile – 800-1000 peak hour – Alleys/driveways
• 11 right side • 15 left side
– 11 blocks (300ft – 52 parking spaces – 1 blk inset parking (L)
Proposed Changes • Introduce left-side bike
facility – 7’ bikeway, 3’ buffer
• Improve bus movements
• Maintain 3 travel lanes • Maintain access to
adjacent businesses • Remove 28 parking
spaces
Limits
• Cleveland to Lawrence/Larimer – Connection to Cherry Creek Trail – Need for bicyclist to move to right prior to
Blake and conflict with turning movements
Cleveland Entry
• Bike box treatment from Cleveland Pl – Position cyclists to
move to L side – Webb building
loading dock • Considering striping
path along Colfax from Bannock St – RTD bus stop
•
Larimer Transition
• -Leading Bicycle Interval – queue jump at Lawrence will
create a head start for bicycles to enter into the intersection.
– Provide time for bicyclists to establish their position, either in the left-turn lane at Larimer or moving to right-side of street
Larimer Transition
• -Leading Bicycle Interval – queue jump at Lawrence will
create a head start for bicycles to enter into the intersection.
– Provide time for bicyclists to establish their position, either in the left-turn lane at Larimer or moving to right-side of street
Design Details: Green Markings
• Use in conflict areas – Not recommended for
alleys and driveways – Considering use in for
mixing zones and intersections
Design Details: Intersections
• Through intersection markings
• Bicycle bays: – Two-stage turn
queue boxes – Assist right turns
from left side of street
– At intersection with existing bike lanes
Design Details: Intersections
• Through intersection markings
• Bicycle bays: – Two-stage turn
queue boxes – Assist right turns
from left side of street
– At intersection with existing bike lanes
Design Details: Mixing Zone
• Mixing zone: shared through lane for bicycles and left turn for automobiles – increased visibility of cyclists to vehicles – safety concerns with cars stopping in the
through lane and turning across bikeway