Speed Prediction for Two-Lane Rural Highways

Fitzpatrick, Kay; Elefteriadou, Lily; Harwood, Douglas W.; Collins, Jon M.; McFadden, John; Anderson, Ingrid B.; Krammes, Raymond A.; Irizarry, Nelson; Parma, Kelly D.; Bauer, Karin M.; Passetti, Karl

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

Speed Prediction for Two-Lane Rural Highways

[PDF-1.03 MB]

English

Details You May Also Like

Details:

Creators:

Fitzpatrick, Kay; Elefteriadou, Lily; Harwood, Douglas W.; Collins, Jon M.; McFadden, John; Anderson, Ingrid B.; Krammes, Raymond A.; Irizarry, Nelson; Parma, Kelly D.; Bauer, Karin M.; Passetti, Karl
Corporate Contributors:

United States. Federal Highway Administration. Office of Safety Research and Development; Texas Transportation Institute; Turner-Fairbank Highway Research Center
Subject/TRT Terms:

[+]

Design Speed Rural HighwaysRural Roads--United States--Design And Construction--Evaluation Speed Limits--United States--Evaluation Two Lane Highways
Publication/ Report Number:

FHWA-RD-99-171
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

Design consistency refers to the conformance of a highway’s geometry to driver expectancy. Drivers make fewer errors in the vicinity of geometric features that conform to their expectations. A technique to evaluate the consistency of a design is to evaluate changes in operating speeds along an alignment. To use operating speed as a consistency tool requires the ability to accurately predict speeds as a function of the roadway geometry. In this research project, several efforts were undertaken to predict operating speed for different conditions such as on horizontal, vertical, and combined curves; on tangent sections using alignment indices; on grades using the TWOPAS model; and prior to or after a horizontal curve. The findings from the different efforts were incorporated into a speed-profile model. The model can be used to evaluate the design consistency of the roadway or can be used to develop a speed profile for an alignment. The model considers both horizontal and vertical curvature and the acceleration or deceleration behavior as a vehicle moves from one feature to another.
Format:

PDF
Alternate URL:

https://www.fhwa.dot.gov/publications/research/safety/ihsdm/99171/99171.pdf ; https://www.fhwa.dot.gov/publications/research/safety/ihsdm/99171/ ;
Funding:

DTFH61-95-R-00084
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:c41f7efc613e64e5facbfc6804b4b7ecf226f0d2322058b250aa8de534b7f023
Download URL:

https://rosap.ntl.bts.gov/view/dot/41555/dot_41555_DS1.pdf
File Type:

No Additional Files

More +

Speed Prediction for Two-Lane Rural Highways

Details:

Supporting Files

You May Also Like