HCM 2000 Errata Website

February 2008

TCRP Report 90: Bus Rapid Transit Volume 2: Implementation Guidelines

On page 4-11, in the top row of Figure 4-7, in the last column, the cross street green for the 80 sec cycle is incorrectly listed as 26 sec. It should be 36 sec.

November 2007

NCHRP Report 577: Guidelines for the Selection of Snow and Ice Control Materials to Mitigate Environmental Impacts

Page 30 incorrectly lists NYSDEC as the New York State Department of Environmental Concern. The correct word is "Conservation," not "Concern."

NCHRP Report 572: Roundabouts in the United States

Table 3 on page 11 incorrectly lists the input parameters of the Israeli model. The input parameters are circulating flow and diameter (not number of legs, number of lanes, speed limit). Also, the units are specified in "Analysis and Evaluation of the Capacity of Roundabouts" by Polus and Shmueli.

February 2007

NCHRP Synthesis 361: Visualization for Project Development

NCHRP Synthesis 361 contained incorrect information in two places on page 24. The last line in the paragraph under the heading "Organization" (column one) should read: In 1995, visualization became operational; a formal group was established that is still in place today.

Also, the first line in the final paragraph in column two under the heading "Research and Development" should read: Visualization research is ongoing as the technology evolves.

NCHRP Report 507 contained incorrect information in Figure 47 and Table 29. The corrected versions of Figure 47 and table 29 appear here in PDF format.

NCHRP Report 525, Volume 4, included a companion CD (CRP-CD-55).. Two Powerpoint slides (28 and 50) within Chapter II on the CD contained errors, and have been corrected on the revised CD ISO image that can be downloaded.

NCHRP Synthesis 352 was published on December 8, 2005. An incorrect version of Figure 14 was included on page 33. This has been corrected in the on-line version of the report.

On Page 42, in the section on cost, the amount should read $0.26 to $0.85 per foot. This has been corrected in the on-line version of the report.



November 2004

On the title page the affiliation of the consultant, Frank W. Venezia, was inadvertently misspelled. The correct spelling is: Lea+Elliott, Inc. The title page in TCRP Synthesis 54 online document has been corrected.

In Table 40, some cells are in the wrong row. Attached is the revised Table 40 (document pages 76-78) in PDF format.

Greene (16) measured the color-naming performance of color-normal and -deficient observers to LEDs of various dominant wavelengths [the dominant wavelength of a colored light is defined in Rea (8) as the wavelength of a monochromatic source that, mixed with a suitable proportion of light from a reference white source, will match the appearance of the colored light] and offered preliminary conclusions that dominant wavelengths of 623 nm for red, 591 nm for yellow, and 494 nm for green were probably acceptable for traffic-signal identification.

• "Performance of Flexible Pavement Maintenance Treatments in the Long-Term Pavement Performance SPS-3 Experiment" (03-4526), pp. 47-54.

On page 51, "(1 – α) x 4" should have read, "(1 – α)⁴."

• "Performance of Rigid Pavement Rehabilitation Treatments in the Long-Term Pavement Performance SPS-6 Experiment" (03-4510), pp. 64-72.

On page 68, "(1 – α)" should have read, "(1 – α)⁷," and the reference callout, "(7)" should have been deleted from the end of the sentence.

• "Performance of Flexible Pavement Rehabilitation Treatments in the Long-Term Pavement Performance SPS-5 Experiment" (03-4523), pp. 93-101.

On page 96, "(1 – α)" should have read, "(1 – α)⁴," and the reference callout, "(4)" should have been deleted from the end of the sentence.

In the paper by Tom Burnham, "Seasonal Load Response Behavior of a Thin Portland Cement Concrete Pavement" (LVR8-1055), pp. 251-261, a paragraph from page 259 was repeated on page 260, replacing another paragraph of text. Corrected pages for 259, 260, and 261 are provided in PDF format.

Table 13 (on page 26) has been corrected in the on-line version of the report.

P. 14: In Equation 16, "Horizontal Tensile Stress" should read "Horizontal Tensile Strain."

P. 38: On top of the graph shown as Figure 38, the word "Confined" should read "Unconfined."

Page 78 has corrected callouts. Download Page 78 (PDF)

In the paper by B. J. Dempsey, Development and Performance of Interlayer Stress-Absorbing Composite in Asphalt Concrete Overlays, pp. 175-183, Figure 13 (p. 181) should show 1.83 mm joint displacement for Product A and Product B, as described in the text on p. 179. A corrected page is provided in PDF format.

n = [log10(1 + r*W18/365*ESAL)]/log10(1 + r)

The paper by Martin P. Burke, Jr., and Joseph S. Seif was published under the title, "AASHTO's Load and Resistance Factor Design Specifications for Transverse Braces: Adverse Effects on Integrity and Durability of Reinforced Concrete Deck Slabs"
(pp. 118–125).

The correct title of the paper by Burke and Seif is:
Adverse Effect of AASHTO's LRFD Specifications for Transverse Braces on Integrity and Durability of Reinforced Concrete Deck Slabs

The table of contents, p. iv, should read:

Adverse Effect of AASHTO's LRFD Specifications for Transverse Braces on
Integrity and Durability of Reinforced Concrete Deck Slabs 118
Martin P. Burke, Jr., and Joseph S. Seif

Coauthors Colin J. Apelt and Mark A. Jempson, Department of Civil Engineering, University of Queensland, Queensland, Australia, were inadvertently omitted from the author list on the title page. The title page should read:

NCHRP Report 445
Debris Forces on Highway Bridges

Arthur C. Parola
University of Louisville
Louisville, KY

and

Colin J. Apelt
Mark A. Jempson
University of Queensland
Queensland, Australia