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Dyer Ave has 3 sections, all separate (but there are a few connector ramps). All three mainly serve Lincoln Tunnel traffic.

SECTION 1 (30 St to tunnel)
Lincoln Tun New Jersey				30 St
Lincoln Tun New Jersey	W 31 ST			31 St WEST
Lincoln Tun New Jersey	(left merge from 33 St)			(right merge from 36 St/Dyer #2) 33 St WEST (left exit)		half diamond
Lincoln Tun New Jersey	(left merge from 36 St/Dyer #2)			34 - 36 St Long Island	30-31 St	3/4 diamond
Lincoln Tun New Jersey	39 ST LAST EXIT IN NY continue (into north tube)			(comes from left fork of center tube)	34 St & South Long Island
SECTION 2 (34 St to tunnel, 1-way SB north of 36 St)
Lincoln Tun New Jersey				W 34 ST TO 9A Javits Cvn Cntr WEST SIDE HWY TO 495 EAST Madison Sq Gdn
Lincoln Tun New Jersey	W 35 ST			35 St West 10 Ave & North
Lincoln Tun New Jersey	W 36 ST (right merge from 9 Ave) continue (onto Dyer #1)			30-31 ST ONLY 36 St (left merge from Dyer #1)
				(comes from right fork of south tube)	495 34 St Downtown Madison Sq Garden
SECTION 3 (tunnel to 42 St, 1-way NB)
9A 42 St Uptown Theater District 40 St & North West Side Hwy	(comes from right fork of center tube and left fork of south tube)
	PARK & LOCK at the Bus Terminal CLEARANCE 7'-6" OPEN 6 AM - 1AM BUSES     PARK & LOCK   NO THRU TRAFFIC   40 St East 9 Ave & South
	UNDERPASS BUS ENTRANCE NO CARS 41 St West West Side Hwy LINCOLN CENTER PARKING
	W 42 ST TO 9A Javits Cvn Cntr

Thanks to Ray Martin for info.