Northern State Parkway Express Lane Strategy

The Problem

The Northern State Parkway is one of Long Island’s oldest limited-access roads, and it shows. Narrow lanes, tight curves, short merge ramps designed for 1940s cars — and traffic volumes that Robert Moses never imagined. Between Exits 28 (Wantagh State Parkway) and 40 (Route 110/Broadhollow Road), the parkway splits into express (left) and local (right) lanes for a stretch through the heart of Nassau into western Suffolk.

Here’s the trap: the express lanes bypass several exits, which means fewer merge conflicts and generally faster flow. But if you need one of those skipped exits, you have to be in the local lanes. Every morning, thousands of commuters play a high-stakes guessing game — commit to express and hope your exit isn’t coming up, or stay local and deal with the constant merging.

The wrong choice easily costs you 5-10 minutes, and during heavy congestion, the wrong lane can mean sitting in a backup while the other side flows at 50 MPH.

The Shortcut

Eastbound (AM Rush)

1. If your exit is east of Exit 37 (Willis Avenue / Roslyn Road), get into the express (left) lanes before Exit 29. The express lanes bypass Exits 30-36A, where local traffic is constantly braking for merging vehicles.
2. If your exit is between 30-36A, stay in the local (right) lanes. Don’t try to cut back from express to local at the merge point — the weave zone is short and dangerous.
3. The express lane entrance closes informally around 8:30 AM — not with barriers, but with volume. By then, both express and local are crawling and the advantage disappears.

Westbound (PM Rush)

1. The express lane advantage is weaker westbound. Traffic volume is more distributed, and the local lanes benefit from cars exiting at each ramp, reducing density. Still, if you’re heading all the way to the Cross Island or Grand Central, the express lanes save 3-5 minutes on average.
2. Stay local if you need Exit 36A (Searingtown Rd) or earlier. The express-to-local merge westbound near Exit 37 is a known conflict point. Trying to cut across at speed is how half the accidents on this stretch happen.

The Key Decision Point

Eastbound: Make your lane choice before Exit 29 (North Broadway / Hicksville). This is where the split begins. If you haven’t decided by then, you’re stuck with whichever lane you’re in.

Westbound: Decide before Exit 40 (Route 110). Same logic — the split starts here heading west, and the choice locks in quickly.

When to Use It

• AM rush eastbound, 6:30-9:00 AM, if your destination is Exit 37 or beyond. The express lanes consistently flow 10-15 MPH faster than local through this stretch.
• PM rush westbound, 4:00-6:30 PM, if you’re heading to the Grand Central Parkway, Cross Island, or any western destination. Express saves time by avoiding Exit 36A through Exit 30 merge conflicts.
• Weekend midday, when moderate traffic slows local lanes at the Wantagh and Seaford-Oyster Bay exits. Express is a clean shot through.

When NOT to Use It

• If your exit is between 30 and 36A. There’s no way to exit from the express lanes in this zone. You’ll have to ride all the way to the merge point and double back, which wastes more time than staying local.
• During off-peak hours (after 7:30 PM, early morning, or midday on weekdays). Both lanes flow freely and the express advantage is zero. In fact, the express lanes have tighter curves and rougher pavement — less pleasant driving when there’s no traffic reason to be there.
• In heavy rain or snow. The express lanes are narrower, have less lighting, and the lane markings are harder to see. The concrete median barrier feels very close at speed. Local lanes are wider and better maintained.
• When there’s an accident in the express lanes. Zero shoulders mean zero escape. If the express lanes are blocked, you’re sitting until a tow truck arrives. At least local lanes have exits every mile.

Time Savings

Typical AM eastbound: 5-8 minutes saved in express vs. local between Exits 29-40. The savings compounds on heavy days when local-lane merging creates stop-and-go waves.

Heavy traffic days (Tuesday-Thursday, or pre-holiday): 8-10 minutes saved. The express lanes maintain 35-45 MPH when local is stop-and-go at 10-15 MPH.

Light traffic (Monday/Friday or summer): 2-3 minutes saved. Marginal, and not worth the lane commitment unless you’re running late.

Pro Tips

• The Northern State’s overhead clearance is 7’6” in spots. Do NOT take a commercial vehicle or oversized SUV with a roof carrier through the express lanes. The clearance bars are unforgiving, and trucks getting wedged under bridges are a regular occurrence that shuts the express down completely.
• The pavement in the express lanes between Exits 31-34 is notoriously rough. Your suspension will remind you. Stay left of the worst cracks but don’t ride the median.
• Cell service drops in the express lanes between Exits 32-35 where the lanes dip below grade level. If you’re on a call or relying on GPS, heads up.
• Old-timers call the express lanes “the tube” because the concrete barriers on both sides make it feel like a tunnel. If you’re not comfortable in tight spaces at speed, local lanes are wider and more open.
• If you see brake lights ahead in the express lane, start slowing early. Rear-end collisions are the #1 accident type here because of the narrow lanes and limited visibility around curves. Following distance matters more in the tube than anywhere else on Long Island.
• The express merges back into local near Exit 37 eastbound. Expect a brief slowdown as lanes recombine. Don’t accelerate into the merge — match the local lane speed and zipper in.