Third & Fourth StreetsTraffic Calming Study

Presentation to

Transportation Commission

May 14, 2015

Study Objectives

• Traffic Calming – reduce speeds to 25 mph• Improve mobility and safety• Maintain or improve operating conditions

Recommended Concept Plan

A

CD

B E

F

G

G

B

H

I

I J

J

K

L

M M

NO

O

PO

Q

R

Traffic Signal at Fourth & AlamedaPros Cons

Provides breaks in Fourth Street traffic which would aid north/south crossings

Provides protected north/south crossing at Alameda Boulevard

Provides protected pedestrian crossings across both Fourth Street and Alameda Boulevard

If combined and sequenced with other downstream signals, signal progression could be set to move vehicle platoons at 25 mph

Alameda Boulevard is classified as a Minor Arterial

May receive neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

May cause additional delay on NASNI

Was previously rejected by City Council

Raised Crosswalks with Rapid Flashing Beacons on Fourth Street at I & H Avenues

Pros Cons

Improves pedestrian visibility

Designed for 25 mph speed

Narrows roadway and distance pedestrians must cross

Creates additional noise

Design must consider drainage

May lose on-street parking spaces

Not well received by motorists with low profile vehicles

Fourth & Iand

Fourth and H

Intersection Modifications to Palm/G Avenues at Fourth Street

Pros Cons

Creates a standard four leg intersection with standard 90 degree angles

Reduces/eliminates pedestrian crossing distance of Palm Avenue

Provides additional opportunity for landscaping

Lessens vehicle exposure to the adjacent park

Reduces turning speeds onto/off of Palm Avenue

Prevents access across Fourth Street from Palm Avenue in both directions

Design alters access to some private residences

Traffic Signal at Fourth Street and F Avenue

Pros Cons Provides breaks in Fourth

Street traffic which would aid north/south crossings

Provides protected north/south crossing at F Avenue

Provides protected pedestrian crossings across both Fourth Street and F Avenue, a designated school crossing

If combined and sequenced with other downstream signals, signal progression could be set to move platoons of vehicles at 25 mph

May receive neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

F Avenue is classified as a local street

Keep Clear Pavement MarkingsPros Cons

Reminds motorists to keep the intersection clear

Provides better north/south access during most congested periods

Considered by some as unsightly and unnecessary

Fourth & D

Curb Extensions at Fourth Street and C Avenue

Pros Cons

Improves visibility of the pedestrian

Shortens the distance pedestrian must cross while exposed to traffic

Narrows the roadway which can slow traffic

May eliminate on-street parking

Design must consider drainage

Fourth & C

Traffic Signal at Fourth Street and B Avenue

Pros Cons

Provides breaks in Fourth Street traffic which would aid north/south crossings

Provides protected north/south crossing at B Avenue

Provides protected pedestrian crossings across both Fourth Street and B Avenue

If combined and sequenced with other downstream signals, signal progression could be set to move platoons at 25 mph

B Avenue is classified as a Collector Street

Strong neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

May increase traffic on B Avenue (projected at 1350 vehicles per day +/- between Third and Fourth Streets, 350+/- vehicles north of Third and 1000 vehicles +/- south of Fourth Streets )

Curb Extensions at Fourth Street and A Avenue

Pros Cons

Improves visibility of the pedestrian

Shortens the distance pedestrian must cross while exposed to traffic

Narrows the roadway which can slow traffic

May eliminate on-street parking

Design must consider drainage

Fourth Street at A Avenue

Speed Tables on Fourth Street between A and Pomona Avenues

Pros Cons Designed for 25 mph speed Creates additional noise

Not well received by motorists with low profile vehicles

Fourth Street between A and

Pomona Avenue

Curb Extensions on Pomona Avenue at Fourth Street

Pros Cons

Improves visibility of the pedestrian

Shortens the distance pedestrian must cross while exposed to traffic

Narrows the roadway which can slow traffic

Reduces turning speed from Fourth Street onto Pomona Avenue

Provides a pedestrian refuge

May eliminate on-street parking

Design must consider drainage

Pomona Avenue and Fourth Street

Traffic Signal & Cul-de-Sac at Glorietta

Pros Cons

Provides bridge access to the northeast quadrant of the City including Tidelands Park, Marriott Hotel and the Coronado Hospital

Signal timing could be adjusted for weekend volumes

Glorietta Boulevard is classified as a Collector Street

May cause increased traffic on Second Street and Glorietta Boulevard (projected at 1450 vehicles per day +/- on Second Street and 1600 vehicles per day +/- on Glorietta Blvd.)

Some consider signals

unsightly and too “urbanistic” for Coronado’s small town atmosphere

May have neighborhood opposition

Affects access to private property

Traffic Circle at Third/Glorietta

Pros Cons

Controls traffic speeds along Glorietta Boulevard with stopping all vehicles

Somewhat removed from the corridor

Speed Table on Pomona Avenue between Fourth Street and Glorietta Boulevard

at the split

Pros Cons

Designed for 25 mph speed Creates additional noise

Not well received by motorists with low profile vehicles

Pomona Avenue at the split

Speed Table on Fourth Street between A & Pomona Avenues

Pros Cons

Designed for 25 mph speed Creates additional noise

Not well received by motorists with low profile vehicles

Fourth Street east of A Avenue

Intersection Modifications to Glorietta Place at Pomona Avenue

Pros Cons

Shortens the distance pedestrian must cross Glorietta Place while exposed to traffic

Narrows the roadway which can slow traffic

Reduces turning speed from Pomona Avenue onto Glorietta Place

Alters driveway access to three properties placing them onto the heavily traveled state highway

Glorietta Place at Pomona Avenue

Modifications to A Avenue at Pomona Avenue

Pros Cons

Eliminates the fast turning movement from Pomona Avenue to A Avenue

Eliminates queueing from Fourth Street back to Pomona Avenue

Motorist will likely take B Avenue as an alternative; increasing volumes on B between Third and Fourth Streets

A Avenue at Pomona Avenue

Modifications to Pomona Avenue / Third Street Intersection

Pros Cons

Eliminates the unorthodox maneuver of making a left turn onto B Avenue from Third Street (City controlled section)

Eliminates lane conflicts with the motorists crossing Third Street (SR-75) at B Avenue

Eliminates entering the state highway with poor visibility due to the acute angle of intersection from the City controlled section of Third Street

Increase traffic volumes on A Avenue and Glorietta Boulevard

Makes alley in the 200 Block between A & B Avenues one-way

Third Street and Pomona Avenue

Traffic Signal on Third Street at B Avenue

Pros Cons

Provides breaks in Fourth Street traffic which would aid north/south crossings

Provides protected north/south crossing at B Avenue

Provides protected pedestrian crossings across both Fourth Street and B Avenue

If combined and sequenced with other downstream signals, signal progression could be set to move platoons at 25 mph

B Avenue is classified as a Collector Street

Strong neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

May increase traffic on B Avenue (350+/- vehicles north of Third)

Keep Clear Pavement Markings

Pros Cons

Reminds motorists to keep the intersection clear

Provides better north/south access during most congested periods

Considered by some as unsightly

Third Street at C Avenue

Speed Table on Third Street west of D Avenue

Pros Cons

Designed for 25 mph speed

Creates additional noise

Not well received by motorists with low profile vehicles

Traffic Signals on Third Street at F Avenue

Pros Cons

Provides breaks in Third Street traffic which would aid north/south crossings

Provides protected north/south crossing at F Avenue

Provides protected pedestrian crossings across both Third Street and F Avenue a designated school crossing

If combined and sequenced with other downstream signals, signal progression could be set to move platoons at 25 mph

May receive neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

May increase traffic on F Avenue

(projected at 150 vehicles per day +/-)

F Avenue is classified as a local street

Traffic Signal on Third Street at H Avenue

Pros Cons

Provides breaks in Third Street traffic which would aid north/south crossings

Provides protected north/south crossing at H Avenue

Provides protected pedestrian crossings across both Third Street and H Avenue, a frequent school crossing

If combined and sequenced with other downstream signals, signal progression could be set to move platoons at 25 mph

H Avenue is classified as a Collector Street

May receive neighborhood opposition

Some consider signals unsightly and too “urbanistic” for Coronado’s small town atmosphere

May increase traffic on H Avenue (projected at 150 vehicles per day +/-)

Intersection Modification on Palm Avenue at Third Street

Pros Cons

Creates a standard four legged intersection at 90 degree angles

Reduces/eliminates pedestrian crossing distance of Palm Avenue

Provides additional opportunity for landscaping

Lessens vehicle exposure to the adjacent park

Reduces turning speeds onto/off of Palm Avenue

Possible increase of on-street parking

Prevents access across Fourth Street from Palm Avenue

Design alters access to some private residences

Raised Crosswalks with Rapid Flashing Beacons at Third and I

Pros Cons

Improves pedestrian visibility

Designed for 25 mph speed

Narrows roadway and distance pedestrians must cross

Creates additional noise

Design must consider drainage

May lose on-street parking spaces

Third Street at I Avenue

Next Steps

• Direction to staff• Consideration by City Council

• Preliminary Engineering• Coordination with Caltrans• Identify Funding• Final Engineering• Additional Coordination with Caltrans• Construction