Variation: Half 3/4 with westbound left at Main

Variation: 3/4 with Pedestrian Crossing

Variation: Pinched TH 13

Variation: 3/4 at Duluth, Roundabout at Arcadia

• Allows for southbound left onto Duluth • Westbound traffic from Duluth is facilitated by making a right on CH 21 and making a “u-turn” at Arcadia roundabout• Traffic calming effect on entry to downtown from West• Gateway feature opportunity within roundabout

• Provides left turns onto southbound Main Ave from CH 21• Cost saving measure - removes need for Pleasant St. extension• Risk of westbound turn lane at Main queueing back into thru lanes

• Additional downtown access - provides left turns onto Main Ave from CH 21• Cost saving measure - removes need for Pleasant St. extension• Requires wider road footprint (north side)• Minimal buffer/streetscape opportunity between pedestrian refuge and travel lanes• Risk of southbound turn lane at Main queueing back into thru lanes• Reduces eastbound left turn lane at TH 13

• Only applicable with A-1 Main Variations allowing for southbound left turn onto Main Ave from CH 21

• Eliminates left turn onto Pleasant St. from northbound TH 13

• Maintains existing alignment with Pleasant St. • Cost Saving measure - eliminates much of the

cost associated with remediating poor soils along TH 13

Duluth Ave

Arcadia Ave

Main Ave

Main Ave

6’ WALK

13’THRU LANE

13’ THRU LANE

13’ THRU LANE

26’MEDIAN

8’ WALK

13’THRU LANE

6’ WALK

10’ BLVD.

10’WALK

24’ 4’

10’ WALK

13’ THRU LANE

13’ TURN LANE

10’CROSS WALK

A-1 Typical Section b (across Main Ave.)A-1 Typical Section a (across CH 21 at Main)

Main Ave. SE

Duluth Ave. SE

Arcadia Ave.

Dakota St. SE

Pleasant St. S

E

Credit River Rd. SE

Evanston Ave. SE

Colorado St. S

E

< Median plantings and banner arms

Streetscaping Opportunities

< Enhanced pedestrian crossing and gateway feature in median between Main and TH 13

> Corner enhancements at signalized intersections

Note: Arcadia Ave. extension to Pleasant St. needed for traffic circulation.

See section a See section b

The Pleasant St. extension would not be

recommended by the Project Management Team due to the high cost associated with

the necessary soil remediation when

there are other viable alternatives.

Duluth Ave Arcadia Ave Main Ave TH 13

A-1 Arcadia with Signal

Note: traffic volumes shown represent expected afternoon peak conditions on side street approaches.

Key Benefits + Lowest property impacts+ Best pedestrian crossing performance+ Driver and pedestrian safety

Key Challenges- Fewer downtown access points- Less efficient traffic operations- Highest project costs

Streetscape Opportunity Score: GoodPedestrian Crossings (across 21): 3Vehicular Crossings (across 21): 2

Preliminary Estimated Cost: $10.2M

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Variation: Pinched TH 13

Variation: Right-in/Right-out with Pedestrian Refuge

Variation: Half 3/4 with westbound left at MainVariation: 3/4 with Pedestrian Crossing

Variation: Right-in/Right-out at Duluth, Signal at Arcadia

• Eliminates southbound left onto Duluth Ave• Variation routes traffic through signal at Arcadia, relying on Colorado St. for westbound and southbound

movements to and from Duluth Ave.• Arcadia already equipped for traffic signal• Variation requires Arcadia extension to Pleasant St. for traffic circulation

• Eliminates northbound left onto Main Ave. This may increase the number of vehicles making “u-turns” at the TH 13 roundabout, if they missed the turnoff Arcadia intersection

• Reduces roadway footprint at Main Ave. • Provides safest pedestrian crossing option with opportunity for enhanced streetscape elements within

median

• Additional downtown access - provides left turns onto northbound and southbound Main Ave from CH 21

• Requires wider road footprint (north side)• Minimal buffer/streetscape opportunity between pedestrian refuge and travel lanes• Risk of westbound turn lane at Main queueing back into thru lanes

• Provides left turn lane onto southbound Main Ave from CH 21• Risk of southbound turn lane at Main queueing back into thru lanes

• Only applicable with A-2 Main Variations allowing for southbound left turn onto Main Ave from CH 21

• Eliminates left turn onto Pleasant St. from northbound TH 13

• Maintains alignment with existing Pleasant St.

Main Ave

Main Ave

Arcadia Ave

Duluth Ave

Pleasant St.

10’WALK

6’ WALK

13’THRU LANE

13’THRU LANE

13’ THRU LANE

8’ MEDIAN

13’ THRU LANE

6’ WALK

7’ BLVD.

24’ 4’ 4’ MEDIAN

14’TURN LANE

A-2 Typical Section c (across CH 21 at Main)

8’88’ WWWALALALKKK

13’THRU LANE

13’TURN LANE

A-2 Typical Section d (across Main Ave.)

Main Ave. SE

Duluth Ave. SE

Arcadia Ave.

Dakota St. SE

Pleasant St. S

E

Credit River Rd. SE

Evanston Ave. SE

Streetscaping Opportunities

> Public Art at Arcadia roundabout

^ Gateway feature in median between Main and TH 13

< Median plantings and banner arms

^ Decorative Pavement

See section cSee section d

Main Ave

Key Benefits + Minimal property impacts+ Most efficient traffic operations+ Best accommodates local and regional trips

Key Challenges - High number of crashes- Risk in funding eligibility- Pedestrian safety

Streetscape Opportunity Score: Very GoodPedestrian Crossings (across 21): 4Vehicular Crossings (across 21): 2

Preliminary Estimated Cost: $7.3M

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Duluth Ave Arcadia Ave Main Ave TH 13

A-2 Arcadia with Roundabout

Note: traffic volumes shown represent expected afternoon peak conditions on side street approaches.

Variation: Roundabout at Main

Variation: Signal at Duluth

Variation: Right-in/Right-out at Arcadia

• Facilitates full-access movements at Duluth Ave with controlled intersection

• Reduced streetscape improvement opportunities• Potential for higher vehicle speeds entering from the west

• Removes left turn lanes onto north and southbound Arcadia. • Removes a downtown access• Will send more traffic to Duluth and Main to make north or southbound movements• Potentially increased traffic on local streets• Streetscaping opportunity in median - plantings, banner arms, etc.

• Facilitates full-access movements at Main Ave. • Creates tight access to properties just north and south of intersection. • Gateway opportunity within roundabout• May be necessary to limit north/southbound movements within roundabout during

peak hours• Roundabout provides “u-turn” movement for those wishing to travel northbound on

Arcadia from south side of downtown

Main Ave

Arcadia Ave

Duluth Ave

6’ WALK

13’ THRU LANE

12’TURN LANE

11’ THRU LANE

16’MEDIAN

6’ BLVD.

13’THRU LANE

6’ WALK

11’BLVD.

10’TRAIL

13’THRU LANE

B-1 Typical Section e (across CH 21 at Main)

Main Ave. SE

Arcadia Ave.

Dakota St. SE

Pleasant St. S

E

Credit River Rd. SE

Evanston Ave. SE

Duluth Ave. SE Streetscaping Opportunities

< Public art at Duluth roundabout

< Banner arms and decorative pavement in medians

> Corner enhancements at signalized intersections

See section e

Duluth Ave Arcadia Ave Main Ave TH 13

B-1 Main with SignalKey Benefits + Most downtown access points+ Managed traffic movements+ Lowest cost

Key Challenges- Less efficient traffic operations- Longest Main Avenue wait times/ queueing- Highest crash severity

Streetscape Opportunity Score: FairPedestrian Crossings (across 21): 3Vehicular Crossings (across 21): 2

Preliminary Estimated Cost: $7.2 M

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Note: traffic volumes shown represent expected afternoon peak conditions on side street approaches.

Variation: Signal at Duluth

Variation: Right-in/Right-out at Arcadia

• Facilitates full-access movements at Duluth Ave with controlled intersection

• Reduced streetscape improvement opportunities• Potential for higher vehicle speeds entering from the west

• Removes left turn lanes onto north and southbound Arcadia. • Removes a downtown access• Will send more traffic to Duluth and Main to make north or southbound movements• Potentially increased traffic on local streets• Streetscaping opportunity in median - plantings, banner arms, etc.

Duluth Ave

Arcadia Ave

6’ BLVD.

18’ MEDIAN

15’ THRU LANE

15’THRU LANE

15’THRU LANE

6’ BLVD.

10’ TRAIL

10’ WALK

15’THRU LANE

ROUNDABOUT

B-2 Typical Section f (across CH 21 at Main)

Main Ave. SE

Duluth Ave. SE

Arcadia Ave.

Dakota St. SE

Colorado St. SE

Pleasant St. S

E

Credit River Rd. SE

Evanston Ave. SE

Streetscaping Opportunities

< Public art at Main & Duluth roundabouts

> Gateway Monument in median between Main and TH 13

< Median plantings and banner arms

^ Decorative Pavement

See section f

A roundabout at Main would not be recommended by the Project Management Team due to the high impacts to private property, including access to adjacent businesses, and operational concerns with the two roundabouts in such close proximity.

Key Benefits + Most downtown access points+ Efficient traffic operations+ Best accommodates local and regional trips

Key Challenges- Most property impacts- Highest number of crashes/pedestrian safety concerns- Highest potential for intersection blockages

Streetscape Opportunity Score: Very GoodPedestrian Crossings (across 21): 3Vehicular Crossings (across 21): 2

Preliminary Estimated Cost: $7.35M

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404040044

Duluth Ave Arcadia Ave Main Ave TH 13

B-2 Main with Roundabout

Note: traffic volumes shown represent expected afternoon peak conditions on side street approaches.

Duluth Ave

Arcadia Ave

Main Ave

Main Ave

Main Ave. SE

Duluth Ave. SE

Arcadia Ave.

Dakota St. SE

Pleasant St. S

E

Credit River Rd. SE

Evanston Ave. SE

Colorado St. S

E

Duluth Ave Arcadia Ave Main Ave TH 13

A Alternative HybridN

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