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This is an old revision of this page, as edited by Kacie Jane (talk | contribs) at 23:23, 24 April 2007 (moved Misplaced Pages:WikiProject U.S. Roads/Exit list guide to Misplaced Pages:Manual of Style (Exit lists): moved out of WikiProject space per User talk:Northenglish#WP:USRD/ELG). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

This page documents an English Misplaced Pages ]. Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus. When in doubt, discuss first on this guideline's talk page.

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Misplaced Pages:WikiProject U.S. Roads/Exit list guide/Nav In hopes of standardizing the appearance of exit lists across the U.S. Roads WikiProject, this exit list guide has been created to give editors a basis for creating, editing and maintaining exit lists pertaining to U.S. Roads.

Basis for guideline

Several discussions regarding the designing of exit lists have occurred in the past, and can be found on this guide's talk page, and at Misplaced Pages talk:WikiProject U.S. Interstate Highways and Misplaced Pages talk:WikiProject U.S. Interstate Highways/Archive 2. These discussions have resulted in the standard outlined below.

Standard

For Interstates that span multiple states, the exit list should be broken up by state. This makes the list easier to read and easier to maintain. This can be done either through section breaks and separate tables for each state, or by putting a multi-column row in the table at the state line.

Required columns

• County: The name of the county, wikilinked, that the exit is in. This should be formatted as a rowspan to encompass all exits in the county. This column is optional for routes that are within a single county.
• Location: The location of the exit, wikilinked, whether it be a town, city, or village. If the location is indeterminable, this should be left blank. This column is optional for routes that are within a single town.
• Exit number: The number of the interchange. If old and new numbers exist, these should be presented as two columns, "Old" and "New". Exit numbers should be written in plain type (i.e. not bolded).
• Mile: The milepost location of the exit. If no mileposts exist (are not measured by the state DOT) or that state's department of transportation does not use mileposts more precise than to the nearest mile and the state uses a mileage-based exit numbering system, then this column can be combined with the exit number column.
• Destinations: Locations and roads as presented on guide signs for the exit. Other locations should not be listed unless that location is extremely notable and well known.
• Notes: Any additional notes about the interchange, such as opening date or additional locations that do not merit inclusion in "Destinations".

State highway link appearance

When linking to state highways, a commonly-used abbreviation for that state should be used for the displayed text for the link. In cases where ambiguity is possible, such as an exit at a state line that serves two state routes in two different states, then the state's official two-letter abbreviation as designated by the United States Postal Service should be used for the displayed text for the link to eliminate any ambiguity.

Shields

Shields that are square are to be 20px in width. Shields that have a different shape are to be 20px in height, regardless of shape. For most three-digit shields, this requires the shields to be 25px in width.

Inclusion and exclusion

Inclusion

• All interchanges with no exceptions.
• Concurrencies.
• Toll barriers.
• Water bodies, within reason. If possible, wikilink to the article on the bridge carrying the roadway over said water body.
• Rest areas/service areas, within reason. If multiple exist, limit those displayed to those of historical/other significance.

Exclusion

• Crossings with other Interstates where no interchange between the Interstates exists.

Special-case scenarios

• Some exits may have the same number for different interchanges. Some exits may have different numbers for the same interchange. In each case though, the list should be broken up by exit number, not by interchange, to maintain a consistent appearance.
• Interchanges with signage that lists both the road name(s) and the route number should have both included in the exit list. If multiple names are given, every name should be listed. See the example for how to format these entries.
  • Example: if the exit signage reads Monroe Ave./Pittsford, then the exit should appear as " NY 31 (Monroe Avenue) - Pittsford" in the exit list.
• Toll barriers should be shown by way of a multi-column row. Ideally this should span the Destinations and Notes columns, allowing the milepost where the barrier is located to appear to the left.
• Directional exits should be formatted in the following pattern: "(road shield) (link to road article) (direction)".
  • Example: NY 252 east

Concurrencies

There are two methods for displaying concurrencies. Either a simple note can be placed in the notes column for the interchanges where the concurrency begins and ends, or a multi-column row can be used to mark the termini of the concurrency. Ideally, this multi-column row should span the Destinations and Notes columns, allowing the milepost and exit number to appear to the left.

In some cases, a concurrency between two freeways can cause the exits along one freeway to "adopt" the exit numbering system of the other for the length of the concurrency, then revert back to the original numbering system after the concurrency. See Interstate 77 in Virginia for an example in practice. To deal with this issue, any and all exit numbers for that interchange should be displayed. Also, multi-column rows should be used to explain the change in numbering scheme.

Keep in mind

Please keep in mind that this is a guideline. In some cases, notably concurrency termini, there are different methods of doing the same thing, and this guideline makes no preference of one system over another. Rather than needlessly editing back and forth, please follow the format of the first complete and compliant exit list on the article.

Examples

Four best-practice examples of exit lists designed according to the above standards are shown below. Depicted are Interstate 590, a portion of Interstate 80 in Pennsylvania, New York State Route 690, and a portion of Interstate 287, respectively.

County	Location	Mile	#	Destinations	Notes
Monroe	Brighton	0.00		I-390 - Corning, Airport	Southern terminus.
		1.69	1	Winton Road
		3.16	2	NY 31 (Monroe Avenue) - Pittsford	No access from NY 31 eastbound to I-590 northbound.
		4.02	3	Elmwood Avenue	Southbound: exit only. Northbound: entrance only.
		4.73	4	Highland Avenue	Northbound: exit only. Southbound: entrance only.
	Rochester	5.31	5	I-490/ NY 590 - Downtown Rochester, Victor	Northern terminus.
		I-590 continues north as NY 590.

County	Location	Mile	Exit #		Destinations	Notes
			Old	New
Clarion			10	64	PA 66 south – Clarion, New Bethlehem
			11	70	US 322 – Strattanville
Jefferson			12	73	PA 949 – Corsica
	Brookville		13	78	PA 36 – Sigel, Brookville
			14	81	PA 28 – Hazen
			15	86	PA 830 – Reynoldsville
Clearfield			16	97	US 219 – DuBois, Brockway
			17	101	PA 255 – DuBois, Penfield
			18	111	PA 153 – Clearfield, Penfield
			19	120	PA 879 – Clearfield, Shawville

County	Location	Mile	#	Destinations	Notes
Onondaga	Van Buren	NY 690 continues south as I-690.
		0.00	1	File:NYS Thruway Sign.gif I-90/New York State Thruway - Albany, Buffalo	Southern terminus.
		1.81		Van Buren Road
		4.24		NY 31 west - Baldwinsville, Jordan
	NY 31 forms a 0.98 mile concurrency with NY 690.
	Baldwinsville	5.22		NY 31 east/ NY 370 - Meridian, Baldwinsville
		6.71		NY 48/ NY 631	Northern terminus.

County	Location	Mile	#	Destinations	Notes
Rockland	Suffern	0.00	New Jersey state line. Southern terminus of NY 17. Northern terminus of NJ 17. NY 17 forms a 0.65 mile concurrency with I-287.
		0.65		File:NYS Thruway Sign.gif I-87/Thruway north/ NY 17 north
		Western terminus of File:NYS Thruway Sign.gif I-87/Thruway/ I-287 concurrency.
	Montebello	3.47	14B	Airmont Road - Suffern, Montebello
	Spring Valley	6.78	Spring Valley toll barrier (commercial vehicles only). Westbound only.
		7.56	14A	Garden State Parkway Connector - New Jersey	No trucks across the state line.
	Clarkstown	8.29	14	NY 59 - Spring Valley, Nanuet
		10.15	13	Palisades Interstate Parkway - George Washington Bridge, Bear Mountain Bridge	No trucks.
		12.33	12	NY 303 - Congers, West Nyack
	Nyack	13.49	11	US 9W/ NY 59 - Nyack, West Nyack
	South Nyack	14.34	10	US 9W - Nyack, South Nyack	Southbound: no exit.
Rockland-Westchester county line		16.42	Tappan Zee Bridge over the Hudson River. $4.00 toll eastbound.
Westchester	Tarrytown	18.24	9	US 9 - Tarrytown	Originally planned to include Interstate 487.
	Greenburgh	Eastern terminus of File:NYS Thruway Sign.gif I-87/Thruway/ I-287 concurrency.
		19.78		File:NYS Thruway Sign.gif I-87/Thruway south - New York City
		Eastbound: speed limit 55 miles per hour.
	Elmsford	20.55	1	NY 119 (Tarrytown Road) - Elmsford, Tarrytown	Eastbound exit is signed as exit 8A of I-87/Thruway. Access to Saw Mill Parkway north via NY 119 east.
		21.23	2	NY 9A - Elmsford	Westbound: exit only.
			3N-S	Sprain Brook Parkway	Sprain Pkwy north only accessible from I-287 west. East-to-north traffic: use the Saw Mill (at exit 1) to the Taconic.
		22.20	4	NY 100A - Hartsdale
	Greenburgh	23.01	5	NY 100/NY 119 (Tarrytown Road)	No entrance ramps. Westbound: NY 119 accessed via NY 100. Access to Bronx River Parkway.

Code

Sample code for generating exit lists follows.

{| class=wikitable
!County
!Location
!Mile
!]
!Destinations
!Notes
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|}