may 14, 2015 1 st street and 2 nd street couplet traffic modification project
Post on 20-Jan-2016
231 Views
Preview:
TRANSCRIPT
April 21, 2023
11stst Street and 2 Street and 2ndnd Street Couplet Traffic Street Couplet Traffic Modification ProjectModification Project
April 21, 2023
City of Chico StaffCity of Chico Staffand
Steve WeinbergerSteve WeinbergerW-TransW-Trans
Presented by:
BACKGROUNDBACKGROUND
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
3
Over the last decade discussions have taken place between the City of Chico and stakeholders regarding all modes of travel on 2nd Street corridor.
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
4
BACKGROUNDBACKGROUND
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.
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
5
BACKGROUNDBACKGROUND
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.
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
6
BACKGROUNDBACKGROUND
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
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
7
BACKGROUNDBACKGROUND
EXISTING CONDITIONSEXISTING CONDITIONS
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
8
22ndnd Street Street
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
9
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
11stst Street Street
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
10
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
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)
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
11
EXISTING CONDITIONSEXISTING CONDITIONS
Notes:1.Travel time and average speed includes delay at intersections
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
1st Street and 2nd Street Couplet Traffic Modification ProjectApril 21, 2023
12
Notes:1.c/mvm = collisions per million vehicle miles2.2007 Collision Data on California State Highways, California Department of Transportation
EXISTING CONDITIONSEXISTING CONDITIONS
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)
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
13
EXISTING CONDITIONSEXISTING CONDITIONS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
14
EXISTING CONDITIONSEXISTING CONDITIONS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
15
EXISTING CONDITIONSEXISTING CONDITIONS
Transit FacilitiesTransit Facilities
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
16
EXISTING CONDITIONSEXISTING CONDITIONS
Downtown Transit Center
B-Line Routes Served1 23 56 9
10 2040 41
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
17
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’
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
18
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
19
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
20
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
21
PROPOSALPROPOSAL
One-Way conversion• Reduce to two through lanes• On-street bicycle lane(s)• Increase parking supply by converting parallel parking to diagonal parking
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
22
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
23
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
24
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
25
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
26
PROPOSALPROPOSAL
Diagonal Parking• Increase parking supply by converting parallel parking to diagonal parking
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
27
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
28
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
29
PROPOSALPROPOSAL
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
30
PROPOSALPROPOSAL
11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
31
PROPOSALPROPOSAL
11stst Street/2 Street/2ndnd Street/Flume Street Street/Flume Street
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
32
PROPOSALPROPOSAL
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
33
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
11stst Street/Salem Street Street/Salem Street(design pending)(design pending)
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
34
PROPOSALPROPOSAL
11stst Street/Salem Street Street/Salem Street(design pending)(design pending)
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
35
PROPOSALPROPOSAL
POTENTIAL RESULTSPOTENTIAL RESULTS
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
36
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)
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
37
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
Intersection Levels of Intersection Levels of ServiceService
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
38
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
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
39
POTENTIAL RESULTSPOTENTIAL RESULTS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
40
POTENTIAL RESULTSPOTENTIAL RESULTS
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
Improved traffic flow1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
41
POTENTIAL RESULTSPOTENTIAL RESULTS
One-way CoupletOne-way Couplet
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
bicyclists and pedestrians1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
42
POTENTIAL RESULTSPOTENTIAL RESULTS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
43
POTENTIAL RESULTSPOTENTIAL RESULTS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
44
POTENTIAL RESULTSPOTENTIAL RESULTS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
45
POTENTIAL RESULTSPOTENTIAL RESULTS
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
46
POTENTIAL RESULTSPOTENTIAL RESULTS
NEXT STEPSNEXT STEPS
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
47
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
1st Street and 2nd Street Couplet Traffic Modification Project April 21, 2023
48
NEXT STEPSNEXT STEPS
top related