CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Research Projects Sponsored By

National Cooperative Highway Research Program (NCHRP)

In Progress

Project end date More information
Jul 2018 NCHRP 24-46: Development of an Implementation Manual for Geotechnical Asset Management for Transportation Agencies
Aug 2017 NCHRP Standard Definitions for Comparable Pavement Cracking Data
Nov 2018 NCHRP 18-17 Entrained Air Void System for Durable Highway Concrete
Dec 2017 NCHRP 05-21 Safety and Performance Criteria for Retroreflective Pavement Markers
Dec 2017 NCHRP Guidelines for Managing Geotechnical Risks in Design-Build Projects
Apr 2017 NCHRP 19-10 AASHTO Partnering Handbook, Second Edition
Dec 2015 Development of Renewable Polymers for Use in Asphalt Pavements
Dec 2015 Synthesis of Information Related to Highway Problems. Topic 46-13. Practice of Rumble Strips and Rumble Stripes
Sep 2017 Reliability of Element-Level Bridge Inspections
Dec 2017 LRFD Minimum Flexural Reinforcement Requirements
Oct 2008 Update of "Roundabouts: An Informational Guide"


Project end date More information
Apr 2015 NCHRP Indefinite Delivery/Indefinite Quantity Contracting Practices
Mar 2016 NCHRP Preconstruction Services Cost Estimating Guidebook
Nov 2015 NCHRP 18-16 Self-Consolidating Concrete for Cast-In-Place Bridge Components
Jul 2013 A Guidebook for Construction Manager-at-Risk Contracting for Highway Projects
Dec 2015 Use of Automated Machine Guidance (AMG) within the Transportation Industry
Nov 2012 Recommended Laboratory Test for Predicting the Initial Retroreflectivity of Pavement Markings from Glass Bead Quality
Dec 2011 Nighttime Construction Impacts on Safety, Quality, and Productivity
May 2009 Alternative Strategies for Safety Improvement Investments
Dec 2014 SHRP 2 Geotechnical Solutions for Soil Improvement, Rapid Embankment Construction, and Stabilization of the Pavement Working Platform
Mar 2006 SHRP-II Revision, NCHRP Project 20-58(04)A
Mar 2008 Performance Measures for Snow and Ice Control Operations
Oct 2005 Nondestructive Testing Technology for Quality Control and Acceptance of Flexible Pavement Construction
Apr 2006 Detailed Planning for Research on Accelerating the Renewal of America's Highways
Feb 2003 Interim Planning Activities for Future Strategic Highway Research Program: Study 1 Detailed Planning for Research on Accelerating the Renewal of America's Highways ("Renewal")