national avenue corridor - mobility options · 2020. 9. 24. · national-wkshp2-mobility_v02.indd...

80' ROW

12.5'Travel Lane

14' Parkway + Sidewalk

(configuration varies)

8'Parking Lane

8'Parking Lane

52' curb-to-curb

12.5' Travel Lane

14' Parkway + Sidewalk

(configuration varies)

11' Turn Lane

80' ROW

10.5'Travel Lane

14' Parkway + Sidewalk

(configuration varies)

7.5'Parking Lane

2' 7.5'Parking Lane

52' curb-to-curb

6' Bike Lane

2'6' Bike Lane

14' Parkway + Sidewalk

(configuration varies)

10.5' Travel Lane

80' ROW

11'Travel Lane

14' Parkway + Sidewalk

(configuration varies)

8'Parking Lane

6'Bike Lane

52' curb-to-curb

11' Travel Lane

6' Bike Lane

14' Parkway + Sidewalk

(configuration varies)

10' Turn Lane

80' ROW

10'Travel Lane

10' Parkway + Sidewalk

7'Parking

Lane

7'Parking

Lane

6'Bike Lane

56' curb-to-curb

10' Travel Lane

6' Bike Lane

14' Parkway + Sidewalk

(configuration varies)

10' Turn Lane

80' ROW

11'Travel Lane

14' Parkway + Sidewalk

(configuration varies)

6'Bike Lane

44' curb-to-curb with optional bulb-outs (otherwise 52')

11' Travel Lane

6' Bike Lane

4' Bulb-out

4' Bulb-out

14' Parkway + Sidewalk

(configuration varies)

10' Turn Lane

Existing Conditions - Typical street section

Preferred Option - Remove center turn lane, add bike lanes

View at mid-block

View at intersection(bulb-outs optional)

Option reviewed/rejected - Remove parking one side for bike lanes

Option reviewed/rejected - Widen road/reduce sidewalk

Existing Conditions - Plan diagram (representative segment)

Option reviewed/rejected - Plan diagram (representative segment)

Diagram showing proposed north vs. south location of on-street parking for entire corridor planning area

Option reviewed/rejected - Plan diagram (representative segment)

Option 1 - Plan diagram (representative segment)

Pros:• No changes needed to existing curbs or striping• Accommodates vehicle left turns along each block

Cons:• No dedicated bicycle facilities• On-street parking causes potential “dooring” confl ict for

bicyclists on both sides of National Avenue

Pros:• No changes needed to existing curbs• Class II bike lanes are safer than existing conditions or Class

III bike routes• Buff er between bike lanes and on-street parking reduces

potential “dooring” confl icts• Opportunity for pedestrian-friendly intersection bulb-outs• Potential for reduction in travel speeds

Cons:• Removes left turn opportunities for vehicles mid-block• Removes on-street parking near intersections (approx. 74

parallel parking spaces along entire corridor, about 17%)• Added cost to install optional intersection bulb-outs

Pros:• Class II bike lanes are safer than existing conditions or Class

III bike routes• Retains on-street parking (both sides of street) and center

left turn lane

Cons:• Expensive and likely infeasible to expand street and reduce

parkway/sidewalk along one side of the entire corridor (approx. 1.8 miles)

• On-street parking causes potential “dooring” confl ict with bicyclists on both sides of National Avenue

• Narrower travel lanes

Pros:• No changes needed to existing curbs• Class II bike lanes are safer than existing conditions or Class

III bike routes• Retains left turn opportunities for vehicles mid-block• Intersection bulb-outs are possible with this option

Cons:• Removes about 48% of on-street parking along the entire

corridor (approx. 210 parallel spaces total) - see inset diagram showing proposed parking confi guration

• “Dooring” of bicyclists still a possibility next to parking• Added cost to install optional intersection bulb-outs

National Avenue Corridor - Mobility Options

MIGJuly 27, 2013

Vehicle Travel LaneCenter Turn Lane/Left Turn PocketOn-street Parallel Parking

Class II Bike LaneClass III Bike RouteBus Stop

Vehicle Travel LaneCenter Turn Lane/Left Turn PocketOn-street Parallel Parking

Class II Bike LaneClass III Bike RouteBus Stop

Vehicle Travel LaneCenter Turn Lane/Left Turn PocketOn-street Parallel Parking

Class II Bike LaneClass III Bike RouteBus Stop

Vehicle Travel LaneCenter Turn Lane/Left Turn PocketOn-street Parallel Parking

Class II Bike LaneClass III Bike RouteBus Stop