October 5–11, 2026 brought 8 crash records on the Northern State Parkway in Nassau and Suffolk, according to 511NY records stored by Long Island Traffic — 1.1 per day across all 7 days with complete 511 data. The afternoon window (3–6:59 p.m.) held the single largest share of records, and Tuesday carried more records than any other day of the week.
The comparison period — the previous four weeks covering 25 counted days — averaged 0.8 crash records per day, according to 511NY records stored by Long Island Traffic. Because those weeks straddle the October 2 511NY feed switch, that difference should be read alongside the caveat that the two feed versions have not yet been measured for whether they record incidents at the same rate.
Eastbound corridor drew more records than westbound
Five of the 8 crash records were logged eastbound and 3 westbound, according to 511NY records stored by Long Island Traffic.
Crash records by direction
| Direction | Crash records |
|---|---|
| Eastbound | 5 |
| Westbound | 3 |
Six exits each appeared once in this week’s 511 records, according to 511NY records stored by Long Island Traffic. Exit 26S (New Hyde Park Road, North Hempstead), Exit 28N (Willis Avenue, North Hempstead), Exit 28S (Willis Avenue, North Hempstead), Exit 32 (Post Avenue, North Hempstead), Exit 33 (Wantagh State Parkway, North Hempstead) and Exit 35N (NY 106, Oyster Bay) each carried 1 record.
Crash records by nearest exit named in the 511 record (this week)
| Exit | Exit name | 511 locality | Crash records |
|---|---|---|---|
| Exit 26S | New Hyde Park Road | North Hempstead | 1 |
| Exit 28N | Willis Avenue | North Hempstead | 1 |
| Exit 28S | Willis Avenue | North Hempstead | 1 |
| Exit 32 | Post Avenue | North Hempstead | 1 |
| Exit 33 | Wantagh State Parkway | North Hempstead | 1 |
| Exit 35N | NY 106 | Oyster Bay | 1 |
Looking at the full period from July 14 through October 11, 2026 — 65 crash records across days with complete 511 data, according to 511NY records stored by Long Island Traffic — Exit 32 at Post Avenue in North Hempstead led all exits with 6 records.
Exits with the most 511 crash records, July 14–October 11, 2026
| Exit | Exit name | 511 locality | Crash records |
|---|---|---|---|
| Exit 32 | Post Avenue | North Hempstead | 6 |
| Exit 29 | Roslyn Road | North Hempstead | 4 |
| Exit 27N | Shelter Rock Road | North Hempstead | 4 |
| Exit 25 | Lakeville Road | North Hempstead | 4 |
| Exit 26S | New Hyde Park Road | North Hempstead | 3 |
Afternoon and Tuesday led by time of day and weekday
Three of the 8 records fell in the afternoon window (3–6:59 p.m.), according to 511NY records stored by Long Island Traffic. Morning (6–9:59 a.m.) and evening (7–11:59 p.m.) each produced 2 records; midday (10 a.m.–2:59 p.m.) produced 1; and the overnight window (midnight–5:59 a.m.) produced none.
Crash records by time of day (511 “Reported” time, Eastern)
| Time of day | Crash records |
|---|---|
| Overnight (midnight–5:59 a.m.) | 0 |
| Morning (6–9:59 a.m.) | 2 |
| Midday (10 a.m.–2:59 p.m.) | 1 |
| Afternoon (3–6:59 p.m.) | 3 |
| Evening (7–11:59 p.m.) | 2 |
Tuesday was the busiest day of the week with 3 records, followed by Monday with 2, according to 511NY records stored by Long Island Traffic. Wednesday, Thursday and Friday each had 1 record; Sunday and Saturday had none.
Crash records by day of week
| Day | Crash records |
|---|---|
| Sunday | 0 |
| Monday | 2 |
| Tuesday | 3 |
| Wednesday | 1 |
| Thursday | 1 |
| Friday | 1 |
| Saturday | 0 |
Most records involved a single lane
Five of the 8 crash records described an impact of one lane, 2 described the shoulder only, and 1 described two or more lanes, according to 511NY records stored by Long Island Traffic.
Lane impact stated in the 511 crash records
| Impact | Crash records |
|---|---|
| One lane | 5 |
| Shoulder only | 2 |
| Two or more lanes | 1 |
511NY records stored by Long Island Traffic showed 0 crash records within 2 hours of an earlier record at the same exit and direction this week, indicating no flagged possible repeats. Other incident records — disabled vehicles, debris and similar — totaled 0 for the week.
State Police Troop L logged more accident entries than recent averages
New York State Police Troop L recorded 25 property-damage accident log entries on the Northern State this week, compared with a previous 4-week average of 18, according to the Troop L daily media log. Personal-injury accident entries stood at 5 this week against a 4-week average of 4.3. Hit-and-run entries totaled 2 this week versus a 4-week average of 1. There were 0 DWI entries this week; the 4-week average was 0.5.
State Police Troop L log entries on the Northern State, this week vs previous 4-week average
| Log category | This week | Previous 4-week average |
|---|---|---|
| Accident: property damage | 25 | 18 |
| Accident: personal injury | 5 | 4.3 |
| Accident: hit & run | 2 | 1 |
| Vehicle: DWI | 0 | 0.5 |
| Vehicle: disabled | 0 | 0 |
Fatal crash baseline, 2010–2024
NHTSA’s Fatality Analysis Reporting System recorded 0 fatal crashes and 0 deaths on the Northern State in Nassau and Suffolk in 2024 (preliminary), according to FARS. Across 2010–2024, FARS recorded 51 fatal crashes and 60 deaths on the corridor.
How we measured this
- Records: 511NY accident-class records on the Northern State Parkway in Nassau and Suffolk counties, stored by Long Island Traffic’s 511NY monitor, reported from 12:00 a.m. October 5 through 11:59 p.m. October 11 (Eastern). Queens records are excluded.
- “Crash records” are 511 records titled Crash, Vehicle fire or Overturned vehicle; disabled vehicles, debris and other incidents are counted separately.
- Exit, direction, lane impact and time of day come from each 511 record’s own description and “Reported” time.
- Comparison weeks are the four 7-day periods immediately before this one. Our 511 coverage expanded in June 2026, so no comparison reaches before July 1, 2026.
- Days on which 511NY data was missing or incomplete are left out of this week and of the comparison weeks, and the weeks are compared by average crash records per counted day rather than by weekly totals.
- State Police figures count Troop L daily media-log entries whose road field names this corridor, by the log’s own category. Names in the log are not used.
- The FARS baseline counts fatal crashes and deaths on this corridor’s Nassau and Suffolk portions from NHTSA’s national files.
Limitations
- 511NY data was missing or incomplete on Sep 30, 2026, Oct 1, 2026 and Oct 2, 2026 (a 511NY system change). Those days are left out of every week in this report, so the comparison uses average crash records per day: 7 days counted this week and 25 days in the previous four weeks.
- Long Island Traffic began reading 511NY’s new system on October 2, 2026. Records before and after that date come from different versions of the 511NY feed, and whether the two record incidents at the same rate has not yet been measured, so a change across that date may partly reflect the switch.
- A 511 record is not a verified crash: one collision can produce more than one record, and some crashes never reach 511. These are record counts, not crash totals or crash rates.
- Weekly counts this small move a lot by chance; a single week above or below the 4-week average is not evidence of a trend.
- There is no traffic-volume denominator, so these counts cannot say whether the road is more or less dangerous per mile driven.
- Our database does not store when 511 closed a record, so this report gives no clearance times.
- The Troop L log is the State Police’s daily media release; it does not include crashes handled by county or local police.
- FARS covers 2010–2024 only (2024 preliminary) and fatal crashes only; it says nothing about this week.