Orientation: Interstate 890 runs from left to bottom right, passing by a major plant of the General Electric Company (bottom). A frontage road, actually Rice Road (reference route 912W) runs along the south side of I-890. Erie Boulevard curves across the bottom right corner, and NY 5 (State Street) does likewise at top right. Washington Avenue runs from I-890 northward across State Street along the right edge of the photo.
North Avenue serves the GE plant, branching from Rice Road west of Erie Boulevard. Old River Road provides another plant entrance off of Erie Boulevard (extreme bottom right). Schenectady County Community College is located at the junction of State Street and Washington Avenue.
Exit numbers: Exit 3 from I-890 is an eastbound-only exit marked "GE Truck Terminal". Exit 4A, also eastbound-only, serves the GE plant via its North Avenue entrance. Exit 4B in both directions is for Erie Boulevard and the GE plant. In the eastbound direction, this exit also serves Washington Avenue. Exit 4C, westbound-only, serves Washington Avenue and State Street; it is marked "TO NY 5 - Scotia".
The interchange: This complex consists largely of a series of slip ramps and "jughandles" serving commercial and commuter traffic to and from the General Electric facilities. However, it also incorporates a spur to Washington Avenue and what can be thought of as an elongated traffic circle on Erie Boulevard, both providing important connections to downtown Schenectady.
There are more exit and entrance ramps for eastbound traffic than for westbound, but this is probably due merely to the location of the GE plant along I-890's south side, rather than intentionally favoring any particular traffic pattern. Even so, traffic entering I-890 eastbound from the plant's eastern section must make two consecutive U-turns to do so. This is also true of traffic entering from Erie Boulevard, and one U-turn is required from Washington Avenue.
A summary of the connections provided by each ramp is given below.
Other features: The entrance from NY 5 to Schenectady County
Community College is also shown here. From westbound NY 5 the entrance
consists of a road curving around along the Mohawk River, passing under
the Western Gateway Bridge on NY 5. The campus also has an eastern
entrance on Washington Avenue. Notice a U-turn for Washington Avenue
traffic passing beneath the ramp from I-890: this allows campus traffic
to reach downtown points in addition to I-890.