1. To prepare a comprehensive, reliable data base of soil properties
and R-values by making on-site visits to each district office (and
HQ, if needed) to “mine out” available historical records,
followed by data culling and checking
2. To conduct multivariate statistical analyses (and possibly geostatistical
spatial analyses) to obtain correlations between soil properties (e.g.
USC soil group, Atterberg limits, percent finer than #200 sieve, maximum
dry density) and R-value. Expansion pressures of compacted soils also
can be investigated for locales with expansive soils.
3. To develop predictive (regression) models for R-value (including
the best estimate and the error, or “confidence) for specific
zones within each ITD district or within particular regions of the
4. To publish an Idaho R-value guide (or manual), for use by ITD and
by private geotechnical consultants contracted by ITD.
Output: White Paper and possibly Idaho R-value application
No. 4: Survey
of local highway district employees to determine workforce development
needs; $24,647; 16 weeks; Greg Laragan
1. Create and conduct a Web-based and mail survey of the
highway jurisdiction personnel of Idaho, both local and within ITD's
Division of Highways, to determine the workforce development needs
that exist and must be addressed through further training and retention
2. Analyze data from the surveys, generate a final report
with recommendations to ITD.
A Web-based and mail survey instrument soliciting information
from the highway jurisdictions of Idaho that will provide data on
the current and anticipated workforce needs in the highway industry
of Idaho. The survey will included analysis of the data to be used
by T2 Center and ITD and a final report.
No. 5: Comparison
of Micro-Deval test (AASHTO T327) values with Idaho Degradation test
(Idaho IT15); $57,368; 12 months; Mike Santi
1. Provide Micro-Deval Test results for 54 Idaho coarse aggregates
(nine per district) with a performance history of good, fair, or poor.
2. Compare the results with the Idaho degradation test results for
the same aggregates as well as performance characteristics of these
aggregates in Idaho projects. ITD will perform these tests and provide
the results for comparison.
3. Report on the findings in this investigation.
Output: Research report
No. 6: Frequency
Analysis for Superpave Compaction Project; $12,000; five months;
1. Apply frequency (statistical) analysis for the collected sampling
data to optimize sampling frequency for future paving projects.
Output: A report of the analytical results will be
generated and a short research note may be written based on the results
and sent to material journal.
No. 7: Lime-Fly
Ash Stabilization of Pavement Subgrade Soils, Base, and Recycled Asphalt;
$81,859; 12 months; Jeff Miles
1. The primary objective of the proposed project is to investigate
the use of lime together with coal fly ash for the pozzolanic reaction
to stabilize soil subgrade and granular base course under pavements.
Output: Research report
No. 8: Improvement
of the Idaho chip seal surface treatment; $67,679; 12 months;
The primary objective of the proposed research project is
to evaluate the performance of Idaho's existing chip seal practice
and identify the specific causes of aggregate loss from the pavement
surface. Subsequently, investigate alternative materials/methods to
improve the current practice and alleviate the associated problems.
Research report, new standards/specifications.
No. 9: Transportation
Library Connectivity (pooled fund project); $15,000; two years;
1. Leverage the expertise of transportation libraries in other states
to assist with the development of an online and in-house transportation
library at ITD
2. Obtain access to online search tools that can help ITD staff better
access transportation research information.
3. Foster regional cooperation with other transportation agencies
in the Northwest.
Access to an international system that would allow rapid
retrieval of information and publications. A site visit will be performed
by the technical liaison for TLC to assist the staff in converting
from obsolete cataloging systems (i.e. access) to OCLC in the most
efficient manner. The technical liaison has previous experience converting
libraries to “current” programs and their knowledge and
resources would be invaluable. There will be training by staff in
using the newest versions of OCLC (Research Program Assistant has
20 years experience using OCLC and has all the basic training).
Construction of Crack-Free Bridge Decks, Phase II (pooled fund
project); $14,000; five years; Matt Farrar
To implement the most cost-effective techniques for improving
bridge deck life through the reduction of cracking. The work involves
cooperation among state departments of transportation, cement companies,
contractors and designers.
Output: Continued research (this is second phase
of existing research with Kansas, Minnesota, New York, Texas and Wisconsin);
Major reduction in bridge deck cracking, an improvement in durability
and an increase in the useful life of bridges.
Evaluation of Non-Intrusive Traffic Detection Technologies, Phase III
(pooled fund project); $15,000; 18 months; Glenda Fuller
Conduct field tests of the latest generation of non-intrusive traffic
sensors. Field tests will assess the capabilities and limitations
in detecting traffic under a variety of conditions. Specific test
conditions will be driven by the needs of participating states.
Output: Research report.
top research priority
criteria & council members