Variable message signs.

Variable message signs update (1995-1998).
Published: (1998)

Changeable message signs.
Published: (1979)

Optical and photometric standards for variable message signs /
by: Jenkins, S. E.
Published: (1991)

Signs /
by: Goor, Ron
Published: (1983)

Variable traffic signs (1989-1994) : a selection of abstracts recently added to the TRL Library Database.
Published: (1994)

Making traffic signs work : an overview of design and testing procedures /
by: Donald, Deborah
Published: (1995)

Effective message design for dynamic message signs /
Published: (2006)

The development and application of yield right-of-way signs.
by: Kell, James H.
Published: (1958)

Retroreflection : definition and measurement /
Published: (2001)

Behavioral traffic safety messaging on variable message signs /
by: Ullman, Gerald L.
Published: (2022)

Obscuration of traffic signs and signals /
by: McDonald, M.
Published: (1988)

Highway signing research : Phase II. Characterization of sign-facing materials /
by: Funnell, J. E.
Published: (1966)

Safety provisions for support structures on overhead sign bridges.
Published: (1970)

Evaluation of overhead sign background materials and mercury vapor sign lights : final report /
by: Jones, H. Dexter
Published: (1984)

I read signs /
by: Hoban, Tana
Published: (1983)

International road signs : interpretability and training techniques /
by: Griffith, Douglas
Published: (1978)

Recycled content sign blanks /
by: Roschke, Paul N.
Published: (1996)

Guidelines on the selection and design of messages for changeable message signs /
by: Dudek, Conrad L.
Published: (1992)

Traffic signs manual /
Published: (1965)

Impact behavior of sign supports : II, a staff progress report /
Published: (1965)

Standard alphabets for highway signs and pavement markings : a reference guide.
Published: (1977)

State of the practice in supports for small highway signs /
Published: (1977)

Sign supports: foundation design. : Presented at the 38th annual meeting, January 5-9, 1959.
Published: (1960)

Evaluation of a changeable message sign system on the inbound Gulf Freeway /
Published: (1975)

Photometric requirements for portable changeable message signs /
Published: (2001)

Guidelines on the use and operation of changeable message signs /
by: Dudek, Conrad L.
Published: (1992)

Outdoor testing of reflective sign materials /
by: Nettleton, Thomas J.
Published: (1985)

Impact of minimum retroreflectivity values on sign replacement practices /
Published: (1996)

Forces on a sign gantry in normally directed winds /
by: Hay, Jim
Published: (1978)

Specifications for the design and construction of structural supports for highway signs.
Published: (1968)

An evaluation of signing for three-lane roundabouts /
by: Inman, Vaughan
Published: (2010)

Motorist understanding of alternative designs for traffic signs /
by: Picha, Dale L.
Published: (1995)

A second investigation into bilingual (Welsh/English) traffic signs /
by: Rutley, K. S.
Published: (1974)

Guidelines for selecting a small highway sign support system /
by: Ross, Hayes E.
Published: (1979)

Improving dynamic message sign operations /
Published: (2001)

Optimizing comprehension of changeable message signs (CMS) /
by: Greenhouse, Daniel
Published: (2007)