 New York State Route 78 ( NY 78 ) is a 73 @.@ 49 @-@ mile ( 118 @.@ 27 km ) state highway in western New York in the United States . While it is signed north – south , the southern portion runs in an east – west direction across Wyoming and Erie counties , from its beginning at a junction with NY 19 north of the village of Gainesville to the village of East Aurora . The part of the route north of East Aurora follows a generally north – south alignment to an intersection with NY 18 in the Niagara County town of Newfane ( at the hamlet of Olcott ) , just south of the Lake Ontario shoreline . The route is most closely identified in the region with Transit Road , a major north – south trunk road through the center of Erie and Niagara counties ; however , NY 78 does not follow Transit Road for its entire length , nor does Transit Road comprise more than half its length . The highway joins Transit Road north of East Aurora and stays with the road to its end in the city of Lockport . 
