Study

Strategy

Period

Lane closure configuration

Approach of analysis

Findings

[28]

Static Late merge vs early merge

Short-term

2-to-1, 3-to-1, and 3-to-2

Microscopic simulation

Late merge is better

[12]

Static Late merge, early merge, signalized merge

Short-term

2-to-1, 3-to-1, and 3-to-2

Microscopic simulation

Late merge is better for high volumes, Early merge is better for low volume

[13] , [14]

Conventional practice, Dynamic early and Dynamic late

Short-term

2-to-1, 3-to-2

Microscopic simulation

Dynamic early merge is better

[29]

Zipper merge

Congested time period at field site

2-to-1, 3-to-2

Field test on Freeways, arterials

Increased safety, reduced travel time

[30]

Dynamic Late merge

Field site

2-to-1

Microscopic simulation

Dynamic late merge is better than conventional

[31]

Dynamic Late merge

Field site

2-to-1

Field test on Freeways

Reduced travel time; better than early merge