Corrugation of roads

Joseph Both, D. C. Hong, D. A. Kurtze

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a one dimensional model for the development of corrugations in roads subjected to compressive forces from a flux of cars. The cars are modeled as damped harmonic oscillators translating with constant horizontal velocity across the surface, and the road surface is subject to diffusive relaxation. We derive dimensionless coupled equations of motion for the positions of the cars and the road surface H(x,t), which contain two phenomenological variables: an effective diffusion constant Δ(H) that characterizes the relaxation of the road surface, and a function a(H) that characterizes the plasticity or erodibility of the road bed. Linear stability analysis shows that corrugations grow if the speed of the cars exceeds a critical value, which decreases if the flux of cars is increased. Modifying the model to enforce the simple fact that the normal force exerted by the road can never be negative seems to lead to restabilized, quasi-steady road shapes, in which the corrugation amplitude and phase velocity remain fixed.

Original languageEnglish (US)
Pages (from-to)545-559
Number of pages15
JournalPhysica A: Statistical Mechanics and its Applications
Volume301
Issue number1-4
DOIs
StatePublished - Dec 1 2001
Externally publishedYes

Fingerprint

roads
Phase Velocity
Linear Stability Analysis
One-dimensional Model
Harmonic Oscillator
Dimensionless
Plasticity
Damped
Critical value
Equations of Motion
Exceed
Horizontal
translating
Decrease
phase velocity
plastic properties
harmonic oscillators
beds
equations of motion
Model

ASJC Scopus subject areas

  • Mathematical Physics
  • Statistical and Nonlinear Physics

Cite this

Corrugation of roads. / Both, Joseph; Hong, D. C.; Kurtze, D. A.

In: Physica A: Statistical Mechanics and its Applications, Vol. 301, No. 1-4, 01.12.2001, p. 545-559.

Research output: Contribution to journalArticle

Both, Joseph ; Hong, D. C. ; Kurtze, D. A. / Corrugation of roads. In: Physica A: Statistical Mechanics and its Applications. 2001 ; Vol. 301, No. 1-4. pp. 545-559.
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