Editing Interstate 78 (section)

==Auxiliary routes==
All of I-78's [[List of auxiliary Interstate Highways|auxiliary routes]] serve New York City; however, none of these routes actually intersect I-78, following the route's truncation at the eastern end of the [[Holland Tunnel]].
*{{jct|state=NY|I|278}} runs from [[U.S. Route 1/9|US&nbsp;1/9]] in [[Linden, New Jersey]], over the [[Goethals Bridge]], through [[Staten Island]], over the [[Verrazzano-Narrows Bridge]] and through [[Brooklyn]] and [[Queens]], and across the [[Robert F. Kennedy Bridge|Triborough Bridge]] into [[the Bronx]] to end at [[Interstate 95|I-95]] at the [[Bruckner Interchange]].<ref name="fhwa2"/> I-278 was planned to extend west from [[Elizabeth, New Jersey]], to I-78 in [[Springfield Township, Union County, New Jersey]],<ref>{{cite map|publisher=New Jersey Department of Transportation|title=Union County Sheet 1|year=1967|url=http://mapmaker.rutgers.edu/UNION_COUNTY/UnionCoHighway1967_1.gif|access-date=February 13, 2010}}
* {{cite map|publisher=New Jersey Department of Transportation|title=Union County Sheet 2|year=1967|url=http://mapmaker.rutgers.edu/UNION_COUNTY/UnionCoHighways1967_2.gif|access-date=February 13, 2010}}</ref> and was to intersect I-78 at the east end of the [[Williamsburg Bridge]] in Brooklyn.<ref name="RPA-ExpresswayPlans-1964"/> Until 1972, I-278 ran along present-[[New York State Route 895|NY&nbsp;895]] and a proposed extension to I-95, while I-278 east of NY&nbsp;895 was I-878.<ref name="chevron"/><ref name="esso"/>
*{{jct|state=NY|I|478}} is an unsigned designation for the [[Brooklyn–Battery Tunnel]], a spur from I-278 into [[Lower Manhattan]].<ref name="fhwa2"/> Plans were made to continue it north along the [[West Side Highway]] ([[New York State Route 9A|NY&nbsp;9A]]) to I-78 at the Holland Tunnel,<ref>{{cite book|url=https://books.google.com/books?id=G4A2AQAAMAAJ|title=West Side Hwy Project, New York: Environmental Impact Statement|publisher=[[New York State Department of Transportation]]; [[Federal Highway Administration]], [[United States Department of Transportation]]|year=1977|language=en|access-date=March 19, 2018}}</ref>{{Rp|10}} though the project was later canceled.<ref>{{Cite news|url=https://www.nytimes.com/1985/10/07/nyregion/the-legacy-of-westway-lessons-from-its-demise.html|title=THE LEGACY OF WESTWAY: LESSONS FROM ITS DEMISE|last=Roberts|first=Sam|date=October 7, 1985|work=The New York Times|access-date=March 22, 2018|language=en}}</ref>
*{{jct|state=NY|I|678}} runs from I-278 at the Bruckner Interchange south over the [[Bronx–Whitestone Bridge]] to [[John F. Kennedy International Airport]].<ref name="fhwa2"/> It was to intersect I-78 at its south end. Original plans took I-678 west on the [[Grand Central Parkway]] to I-278.<ref name="RPA-ExpresswayPlans-1964">{{cite journal |title = Expressway Plans |journal = Regional Plan News |date = May 1964 |issue = 73–74 |pages = 1–18 |url = https://archive.org/details/regionalplannews7374regi |access-date = February 27, 2017 |publisher = [[Regional Plan Association]] |via = [[Archive.org]] }}</ref><ref name="1960map">{{cite map |title = New Jersey and Metropolitan New York |author1 = Gulf Oil Company |author2 = Rand McNally and Company |year = 1960 |scale = 1:390,000 |location = Chicago |publisher = Gulf Oil Company |inset = Road map of metropolitan New York City|oclc=986509183}}</ref>
*{{jct|state=NY|I|878}} is an unsigned designation for part of [[New York State Route 878|NY&nbsp;878]], a short west–east freeway on the north edge of John F. Kennedy International Airport.<ref name="fhwa2">{{cite web |first=Kevin |last=Adderly |date=December 31, 2016 |title=Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2016 |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |work=Route Log and Finder List |publisher=Federal Highway Administration |access-date = September 24, 2017 }}</ref> It was once planned as part of I-78 and now intersects I-678. The number was assigned in 1970.<ref name=log-1970>{{cite book |url=http://www.eastcoastroads.com/pdfs/state70.pdf
|title=Description of Touring Routes in New York State for the Interstate (I), Federal (U.S.) and State (N.Y.) Route Number Systems |author=New York State Department of Transportation |author-link=New York State Department of Transportation |date=January 1, 1970 |access-date=March 26, 2009}}</ref>
*A former [[Interstate 878 (1959)|I-878]] existed from 1959 to 1972 along present I-278 east of NY&nbsp;895. (NY&nbsp;895 was part of I-278.)<ref name="chevron">{{cite map |publisher = [[Chevron Oil Company]] |title = Map of Metropolitan New York |year = 1969 |cartography = [[H.M. Gousha]] }}</ref><ref name="esso">{{cite map |publisher = Esso |title = Map of New Jersey |year = 1970 |cartography = General Drafting }}</ref>

In the [[Lehigh Valley]] region of eastern Pennsylvania, [[Pennsylvania Route 378|PA&nbsp;378]], which exits in downtown [[Bethlehem, Pennsylvania|Bethlehem]] was once I-378 but was predesignated as a state route after I-78 was rerouted to a new southerly alignment. [[Interstate 178|I-178]] was initially planned to extend in [[Center City Allentown]], but local opposition to the plan led to it being cancelled.

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