CPCS Freight Data
23
 Freight Atlas
38
 NPMRDS
9
 Transit
2
 TSMO
1
Freight Bottlenecks

Bottleneck Locations

Primary bottleneck TMC’s are defined as those sections of interstates that suffer from either excessive congestion or from a reliability issue and moderate or excessive congestion. 

These sections create boundaries to distinct bottleneck locations and segments not identified between a distinct start and end location are considered part of the bottleneck.

Visual inspection or additional data may extend the boundaries of the bottleneck location beyond the bounding 



mETHODOLOGY

Definitions

Geographic Areas consist of Upstate, Suburban and Urban.

  • Urban Area consists of the five counties of New York City (NYSDOT Region 11).
  • Suburban Area consists of Rockland, Westchester, Suffolk, Nassau, Ulster, Orange, Dutchess, Putnam and Columbia County (NYSDOT Regions 8 and 10).
  • Upstate Area consist of the remaining counties of New York State (NYSDOT Regions 1 -7 & 9).

TMC’s should only be considered for metric purposes if they meet the following criteria:

  • TMC must be part of an Interstate
  • TMC length must be .25 mile or more
  • Percent BINS reporting must be 30% or higher
  • TMC must have an NHS value of 1

Excessive congestion is determined by the most recent full year of NPMRDS data. For each geographic area, the Annual Hours of Excessive Delay using the Time of Excessive Delay (TED) value with parameters RIS based AADT, Freeflow Based Threshold Speed, Vehicle Hours Per Mile is used. Note the actual values used will change over time and that no strict methodology was used to determine break values. Refer to Table 1 for break values used in 2022.


Reliability issues are identified by the maximum Truck Travel Time Reliability metric for 3 consecutive years if and only if all three years had a value. Note that due to the pandemic, 2022 measures included years 2021, 2019 and 2018 as it was felt metrics from 2020 would be unstable. Each Geographic Area used a non-formulaic break point threshold for determining Poor Reliability. Refer to Table 1 for values used for 2022.

const regionSettings = {
'Upstate': { ted_low: 97, ted_high: 98, tttr: 99},
'Urban': { ted_low: 97, ted_high: 98, tttr: 90},
'Suburban': { ted_low: 85, ted_high: 90, tttr: 95},
}