may 14, 2015 1 st street and 2 nd street couplet traffic modification project
TRANSCRIPT
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April 21, 2023
11stst Street and 2 Street and 2ndnd Street Couplet Traffic Street Couplet Traffic Modification ProjectModification Project
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April 21, 2023
City of Chico StaffCity of Chico Staffand
Steve WeinbergerSteve WeinbergerW-TransW-Trans
Presented by:
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BACKGROUNDBACKGROUND
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Over the last decade discussions have taken place between the City of Chico and stakeholders regarding all modes of travel on 2nd Street corridor.
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BACKGROUNDBACKGROUND
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22ndnd Street & CSUC Gateway Street & CSUC GatewayThe 2nd Street Corridor supports large volumes of pedestrians, automobiles, busses, and bicycles, but currently has no designated lane for bicycles.
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BACKGROUNDBACKGROUND
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Level of ServiceLevel of ServiceHeavy left turn movements from 2nd Street on to Main and Broadway cause traffic congestion and level of service deficiencies – a well known issue.
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BACKGROUNDBACKGROUND
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As a result of the recently developed Transit Center, ongoing discussions of promoting bicycling on 2nd Street have continued
A holistic look at the Downtown area is necessary, which opened the idea for the concept of converting the direction of traffic on 1st Street and 2nd Street to one-way traffic, creating a “couplet
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BACKGROUNDBACKGROUND
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EXISTING CONDITIONSEXISTING CONDITIONS
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22ndnd Street Street
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EXISTING CONDITIONSEXISTING CONDITIONS
• Four-lanes (two in each direction)• Shared turn-through lanes• No on-street bicycle lanes• On-street parallel parking• Bisects Downtown
9,500 ADT 10,000 ADT
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11stst Street Street
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EXISTING CONDITIONSEXISTING CONDITIONS
• Two to Four-lanes (one to two in each direction)• Shared turn-through lanes• No on-street bicycle lanes• On-street parallel parking• Underutilized traffic capacity
3,000 ADT
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East-West Travel TimeEast-West Travel TimeCorridor Direction Travel Time 1
2nd Street – Orange Street to Flume Street
Eastbound 165 seconds (18 mph)
2nd Street – Orange Street to Flume Street
Westbound 156 seconds (16 mph)
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EXISTING CONDITIONSEXISTING CONDITIONS
Notes:1.Travel time and average speed includes delay at intersections
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CollisionsCollisionsSegment
Collisions (2006-2008)
Daily Volum
e
Calculated Collision
Rate (c/mvm1)
Statewide Average
Collision Rate2 (c/mvm)
1st St from Salem St to 2nd St
4 2,900 4.50 3.35
2nd St from Orange St to Broadway
4 8,500 0.93 3.35
2nd St from Broadway to 1st St
9 9,000 4.57 3.35
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Notes:1.c/mvm = collisions per million vehicle miles2.2007 Collision Data on California State Highways, California Department of Transportation
EXISTING CONDITIONSEXISTING CONDITIONS
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Pedestrian FacilitiesPedestrian FacilitiesFull sidewalks within the
corridorMarked crosswalks at all
intersectionsMany signalized intersections
do not have pedestrian signal heads (pedestrians must follow the traffic signal heads)
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EXISTING CONDITIONSEXISTING CONDITIONS
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Pedestrian EnhancementsPedestrian EnhancementsTextured Crosswalk with
Bulbouts– 2nd Street/Main Street– 2nd Street/Broadway
Pedestrian signal head with walk countdown timer– 2nd Street/Main Street– 2nd Street/Broadway
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EXISTING CONDITIONSEXISTING CONDITIONS
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Bicycle FacilitiesBicycle FacilitiesCurrently, most of the corridor
does not serve bicyclists well– Parts of Salem Street and 1st
Street are Bicycle Connectors– Bike lanes on Salem Street
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EXISTING CONDITIONSEXISTING CONDITIONS
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Transit FacilitiesTransit Facilities
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EXISTING CONDITIONSEXISTING CONDITIONS
Downtown Transit Center
B-Line Routes Served1 23 56 9
10 2040 41
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PROPOSALPROPOSAL
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The City is exploring modifications to the 1st Street and 2nd Street corridors with the goal of:
– enhancing safety for all travel modes– promoting alternate modes of transportation– providing convenient additional parking– revitalizing the CBD without additional infrastructure improvements– converting to a ‘complete street’
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PROPOSALPROPOSAL
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PROPOSALPROPOSAL
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PROPOSALPROPOSAL
Road Diet• Four-lane to three-lane conversion (one lane in each direction with a center turn lane)• On-street bicycle lanes in both directions
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PROPOSALPROPOSAL
One-Way conversion• Reduce to two through lanes• On-street bicycle lane(s)• Increase parking supply by converting parallel parking to diagonal parking
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PROPOSALPROPOSAL
Roundabout• Transition one-way to two-way traffic• Provides enhanced capacity for east-west traffic• Accommodates non-standard intersection alignment• Gateway to downtown• Increase safety for all modes of travel
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PROPOSALPROPOSAL
One-Way conversion• Reduce to two through lane(s) (one lane west of Broadway)• On-street bicycle lanes• Increase parking supply by converting parallel parking to diagonal parking
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PROPOSALPROPOSAL
Drop-off Circle• Ongoing coordination with CSUC• Transition one-way to two-way traffic• Allow for northbound U-Turn movement• Provide for a gateway entry to CSUC
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PROPOSALPROPOSAL
Two-Way conversion• One through lane in each direction• Increase parking supply by converting parallel parking to diagonal parking• Allow for more circulation options
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PROPOSALPROPOSAL
Diagonal Parking• Increase parking supply by converting parallel parking to diagonal parking
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PROPOSALPROPOSAL
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PROPOSALPROPOSAL
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PROPOSALPROPOSAL
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Intersection ModificationsIntersection Modifications Roundabout at 2nd Street/1st
Street/Flume Street– Better accommodates non-standard
intersection alignment and one-way conversion point than a signal
– Serve as a entry point for Downtown Drop-off Circle at 1st Street/Salem
Street– Serve as a entry monument for CSUC– Allows for the 1st Street one-way
conversion– Allows for northbound U-Turn
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PROPOSALPROPOSAL
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11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street
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PROPOSALPROPOSAL
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11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street
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PROPOSALPROPOSAL
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Roundabout Goals & IssuesRoundabout Goals & Issues
Bicycle Access
Driveway Access
Movement Restriction
Driveway Access
Right of Way Necessary
Potential for Landscaping or Urban Design elements
Diagonal Parking
Gateway Monument or Community Art
Pedestrian Access Options
PROPOSALPROPOSAL
Diagonal Parking
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11stst Street/Salem Street Street/Salem Street(design pending)(design pending)
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PROPOSALPROPOSAL
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11stst Street/Salem Street Street/Salem Street(design pending)(design pending)
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PROPOSALPROPOSAL
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POTENTIAL RESULTSPOTENTIAL RESULTS
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East-West Travel TimeEast-West Travel TimeCorridor Direction Existing
Travel Time 1
Proposal Travel Time 1
2nd Street – Orange Street to Flume Street
Eastbound 165 seconds (18 mph)
176 seconds (17 mph)(6.7% increase)
2nd Street – Orange Street to Flume Street (via 1st Street to Broadway) 2
Westbound 156 seconds (16 mph)
165 seconds(17 mph)(5.8% increase)
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POTENTIAL RESULTSPOTENTIAL RESULTS
Notes:1.Travel time and average speed includes delay at intersections2.Traffic is routed though the one-way couplet resulting in a longer distance traveled
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Intersection Levels of Intersection Levels of ServiceService
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POTENTIAL RESULTSPOTENTIAL RESULTS
Balance LOS and volumes along the 1st Street and 2nd Street Corridors
Maintain acceptable LOS at all signalized intersection
Maintain or improve LOS at all unsignalized intersections
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Pedestrian FacilitiesPedestrian Facilities Crossing enhancements
– Intersection bulbouts Decreased pedestrian crossing distance Increases pedestrian visibility
– Road Diet Fewer lanes to cross (less exposure area)
– Intersection improvements Pedestrian push buttons Additional signal walk-time for pedestrian
crossing Installation of count-down pedestrian signal
heads ADA upgrades
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POTENTIAL RESULTSPOTENTIAL RESULTS
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Traffic CalmingTraffic CalmingLane Reduction
– Provides for slower, but steady progression of traffic
Diagonal Parking– Narrows the street encouraging
slower drivingRoundabout
– Steady flow of traffic at a controlled speed
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POTENTIAL RESULTSPOTENTIAL RESULTS
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Utilize existing pavement to balance LOS and volumes without additional new infrastructure
Reduced conflicts with turning vehicles
Will provide space for on-street bicycle lane(s)
Allows for replacing some parallel parking with diagonal parking
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POTENTIAL RESULTSPOTENTIAL RESULTS
One-way CoupletOne-way Couplet
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Road DietRoad DietReduced conflicts with turning
vehiclesSlower, but steady flow of trafficShorted pedestrian crossing
distanceAllows for installation of bicycle
lane(s)Generally more comfortable for
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POTENTIAL RESULTSPOTENTIAL RESULTS
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11stst Street/2 Street/2ndnd Street/Flume Street/Flume Street RoundaboutStreet Roundabout
Reduced vehicle conflictsSteady flow of traffic at a
controlled speedShorted pedestrian crossing
distance Improved transition for two-way
to one-way trafficCreates a downtown gateway
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POTENTIAL RESULTSPOTENTIAL RESULTS
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11stst Street/Salem Street CSUC Street/Salem Street CSUC Drop-off CircleDrop-off Circle
Allows for 1st Street to be one-way
Creates a campus gatewayProvides transition between
two-way and one-way traffic
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POTENTIAL RESULTSPOTENTIAL RESULTS
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Diagonal ParkingDiagonal ParkingNarrows street and provides
traffic calming benefitsGoal of increasing parking
supply approximately 25% from parallel parking– Offsets loss where parallel parking
is removed
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POTENTIAL RESULTSPOTENTIAL RESULTS
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A “Complete Street” A “Complete Street” ApproachApproach
Improve traffic flow issues related to left turn movements from 2nd Street onto Main Street and Broadway
Enhance bicycle circulation on 1st Street and 2nd Street with connections to CSUC
Increase parking capacity
Increase bicycle safety
Reduction of conflicts at the intersection of 1st/ 2nd Street/Flume Street near Camellia Way Bridge
Increase pedestrian safety especially at intersection crossings
Extension of downtown business potential by increased traffic on West 1st Street
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POTENTIAL RESULTSPOTENTIAL RESULTS
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NEXT STEPSNEXT STEPS
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City Staff is prepared to implement a construction schedule as early as Summer 2010, in order to continue with this goal, City Staff is requesting support from Internal Affairs on the following suggestions:1st Street & 2nd Street One-way CoupletRoundabout at Flume Street/1st Street/2nd Street/Camellia Way BridgeBulbout Pedestrian rampsDiagonal ParkingRoad Diet along West 2nd Street from Broadway to UPRRSignal Improvements/Timing Adjustments
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NEXT STEPSNEXT STEPS