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4.0 Geometric and Safety Design

4.4.1 State-of-the-Practice

Tables below present the project survey findings for lane widths of different modes of toll collection for toll roads and toll bridges (i.e., manual, automatic coin machine/automatic ticket issuing machine (ACM/ATIM), dedicated ETC, and express ETC).

Q0199 What is the width of the manual lanes (feet)?
 
Max
Min
Mode
Average
15
9.8
10
10.68

 

Q0133 What is the width of the ACM/ATIM lane (feet)?
 
Max
Min
Mode
Average
14
10
10
11.00

 

Q0072 What is the width of each dedicated lane (feet)?
 
Max
Min
Mode
Average
12
9.5
12
11.1

 

Q0027 What is the width of each Express lane (feet)?
 
Max
Min
Mode
Average
9.5
14
12.0
12.0

 

Q0029 What is the express lane width of left shoulder (feet)?
 
Max
Min
Mode
Average
1
12
4.0
6.36

 

Q0030 What is the express lane width of right shoulder (feet)?
 
Max
Min
Mode
Average
0
12
12.0
10.83

 

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