Using Vehicle Probe Data to Evaluate Speed Limits [Project Summary]

Fitzpatrick, Kay; Kutela, Boniphace; Park, Eun Sug; Pratt, Michael P.; Venglar, Steven P.; Le, Minh; Texas A&M Transportation Institute

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Using Vehicle Probe Data to Evaluate Speed Limits [Project Summary]

2024-08-01
By Fitzpatrick, Kay ; Kutela, Boniphace ; Park, Eun Sug ; ...

[PDF-182.01 KB]

English

Details Related Documents You May Also Like

Details:

Creators:

Fitzpatrick, Kay ; Kutela, Boniphace ; Park, Eun Sug ; Pratt, Michael P. ; Venglar, Steven P. ; ... More +

Fitzpatrick, Kay ; Kutela, Boniphace ; Park, Eun Sug ; Pratt, Michael P. ; Venglar, Steven P. ; Le, Minh Less -
Corporate Creators:

Texas A&M Transportation Institute
Corporate Contributors:

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration

Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Operating Speed Probe Vehicles Speed Data Speed Limits Traffic Data
Publication/ Report Number:

0-7156
Resource Type:

Brief
Geographical Coverage:

United States
Edition:

Project Summary
Corporate Publisher:

Texas. Department of Transportation
Abstract:

When speed limits are set via an engineering speed zone study, the operating speed for a site is needed. This research project investigated whether probe speed data (rather than speeds measured in the field) could reasonably be used in a speed zone study. The idea for using probe speed data is to develop conversion equations that would convert an average yearly speed measure obtained from probe speed data into a speed measure that would represent free-flow conditions for passenger cars. Equations for85th percentile speed and average speed were created for freeway and non-freeway facilities, each subdivided into urban and rural contexts, and their performances were evaluated. For freeways, the adjusted R-squared values for the regression equations indicate that the independent variables used in the models can explain between 77 and 92 percent of the observed speed variability. Further, the values for the root mean square error implies that, on average, the predicted speeds are off by 2.6 to 2.9 mph, which are lower than the suggested incremental speed limits (5 mph).
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha-512:3020d17b814e7c8033076f610b4726d91686658a847aea7a8922ebcff002f5dde8d41c620442445ef3b923c74c0ebe0d6a8fb4bd9ed35f05373967c11813ae17
Download URL:

https://rosap.ntl.bts.gov/view/dot/78980/dot_78980_DS1.pdf
File Type:

No Additional Files

More +

Using Vehicle Probe Data to Evaluate Speed Limits [Project Summary]

Details:

Supporting Files

Related Documents

You May Also Like