Approach Placement Illustrations

The illustrations in this chapter illustrate typical sign placements for various intersection designs. The intersections present the following types of information:

Geometry:

3-leg T (Chapter 5, Section 3)

3-leg side (Chapter 5, Section 4)

4-leg (Chapter 5, Section 5).

Number of Approach Lanes:

1 approach lane alone

1 approach lane with left-turn lane

2 approach lanes alone

2 approach lanes with left-turn lane.

Type of Control:

No control on approach

Stop or Yield control on approach

Signal control on approach.

Highway Routing Arrangement:

Numbered highway ends at intersection

Numbered highway turns right or left at intersection

Highway continues through intersection

Any two or more of the above arrangements.

Table 5-2 is an index that indicates how the approach characteristics shown above are incorporated into the figures in this chapter.

Table 5-2: Index to Approach Placement Illustrations
Fig. No.	Geometry			Number of Approach Lanes				Type of Control			Routing Arrangement
Fig. No.	3-leg T	3-leg Side	4-leg	1 Ln.	1 Ln. + LT	2 Ln.	2 Ln. + LT	None	Stop	Signal	Ends	Left	Thru	Right	Other
5-4	√			√					√			√
5-5	√			√					√			√
5-6	√			√					√		√
5-7	√			√						√				√
5-8	√			√					√			√		√
5-9	√					√				√				√
5-10		√		√				√					√
5-11		√		√				√				√	√
5-12		√			√			√				√	√
5-13		√				√		√				√	√
5-14		√		√						√			√		√
5-15		√			√					√			√		√
5-16		√					√			√			√		√
5-17			√	√					√				√
5-18			√	√				√					√
5-19			√	√					√			√	√
5-20			√	√						√			√
5-21			√	√						√			√	√
5-22			√	√						√		√	√
5-23			√			√		√					√
5-24			√		√					√			√		√
5-25			√	√					√		√
5-26			√	√					√			√
5-27			√	√					√			√		√
5-28			√	√						√				√
5-29			√	√						√		√		√

Section 2: Basic Placement Considerations