Item 2A - Bike and Median Final PresentationDepartment of Public Works
Median & Bike Feasibility Studies
Walnut Grove Avenue Resurfacing Phase 2 &
Valley Blvd Corridor Improvements
Project Background.
Bike Lanes Feasibility Study.
Center Medians Feasibility Study.
Discussion.
CONTENT
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Two major City of Rosemead corridors scheduled for
full roadway resurfacing and upgrades.
New asphalt pavement for smoother and safer driving.
ADA-compliant curb ramps and upgraded crossings.
Preliminary design phase is underway with RFP phase
completed.
These corridors are candidates for bike lanes,
landscaped medians, and City Entry Monuments.
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BACKGROUND
Valley Blvd.
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Bike Lanes Feasibility Study for Valley Blvd
Approach # 1 Approach # 2 Approach # 3 Approach # 4
Parking-
Protected Class
IV
Class IV
Protected Bike
Lanes (Roadway
Widening)
Class IV
Protected Bike
Lanes (No
Parking)
Class II Bike
Lanes
Approach # 1 : Class II Bike Lanes (Roadway Re-striping)
Approach # 1 : Class II Bike Lanes (Roadway Re-striping)
EXISTING CONDITION
Approach # 1 : Class II Bike Lanes (Roadway Re-striping)
Approach # 1 : Class II Bike Lanes (Roadway Re-striping)
100% of existing on-street parking and all four travel lanes are maintained, minimizing the impact on local business
operations.
Class II bike lanes are the most typical type of facility found in the region, meaning no learning curve is required for
road users.
10-foot travel lanes reduce speeds by creating a traffic-calming effect that benefits all road users.
However, This configuration offers the least amount of protection for cyclists as they are positioned between 10-foot
travel lanes and 7-foot parking lanes without a buffer, increasing the risk of "dooring" and side-swipe incidents.
Narrow travel lanes could be perceived as a negative as 10-foot lanes increase "side-friction" and reduce operational
comfort for transit and heavy vehicles.
Valley Blvd is identified as a Truck Route in the City of Rosemead and the recommended width for the outside lane is
12’.
Approach # 2: Parking-Protected Class IV Bike Lanes (Re-striping Variation)
Approach # 2: Parking-Protected Class IV Bike Lanes (Re-striping Variation)
Approach # 2: Parking-Protected Class IV Bike Lanes (Re-striping Variation)
Class IV bike lanes provide a physical barrier using parked vehicles, which significantly improves the Level of Traffic Stress
and promotes higher usage of the facility.
However, Due to restricted space, the recommended parking buffer between the bike lane and parking is not provided,
creating a risk of "dooring" for cyclists from the passenger side of parked vehicles.
Repositioning the parking lane further from the curb alignment obstructs sight-lines for vehicles exiting from driveways.
A sightline analysis would be required for all driveways; given the high density of commercial entrances along the corridor,
there is a certainty of loss of existing curbside parking to maintain safety.
Similarly to Option 1, narrow travel lanes present the same operational challenges regarding side friction for larger vehicles.
Approach # 3: Fully Built-Out Class IV Protected Bike Lanes (Roadway Widening)
Approach # 3: Fully Built-Out Class IV Protected Bike Lanes (Roadway Widening)
Approach # 3: Fully Built-Out Class IV Protected Bike Lanes (Roadway Widening)
Provides the highest level of cyclist safety and comfort by utilizing a 3-foot buffer with a vertical element to physically
separate the bikeway from both parked vehicles and moving traffic.
However, Extremely high capital cost due to the requirement for roadway widening and the relocation of numerous existing
utilities (poles, hydrants, valves) that reside within the impacted area.
Requires a complete redesign along the corridor of all traffic signals, drainage, and streetlights to match the new roadway
geometry.
Approach # 4: Class IV Protected Bike Lanes (No Parking)
Approach # 4: Class IV Protected Bike Lanes (No Parking)
Provides the highest level of cyclist safety and comfort by utilizing a 3-foot buffer.
However, will eliminate all public parking on Valley Blvd.
Bike Lanes Feasibility Study for Walnut Grove
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Approach # 5
Class IV
Protected
Bike Lanes
Approach # 1 Approach # 2 Approach # 3 Approach # 4
Parking-
Protected Class
IV
Class IV
Protected Bike
Lanes (Roadway
Widening)
Class IV
Protected Bike
Lanes (No
Parking)
Class II Bike
Lanes
Bike Lanes Feasibility Study for Walnut Grove
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Bike Lanes Feasibility Study for Walnut Grove
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Center Medians Feasibility Study
This study identified a total of 10 potential locations
along Valley Blvd, where two medians were
categorized as Low potential impact on Traffic
Operations, three categorized as Medium potential
impact on Traffic Operations, and Five categorized as
High potential impact on Traffic Operations.
Staff and the RKA Consulting company recommend
that only the two low-impact medians be considered
for implementation as part of this project.
These medians are located at City limits and offer
ideal opportunities for City Gateway to improve on
Corridor beautification.
Center Medians Feasibility Study
Median Location 1
Center Medians Feasibility Study
Median Location # 10
Discussion:
Bike lanes different approaches
Medians locations
City Monument
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