A methodology for locating the maximum vertical illuminance in street lighting

Riad Saraiji

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Current IESNA recommended practice refers to pedestrian illumination on roadways as a function of the minimum vertical illuminance Ev(min). In this article, a method is developed to find the location of the maximum Ev(min) along streets. Calculation grids are set on the side walk, along the streets and, along the median. It was found that while the vertical illuminance at one point along the street may be greater than 1 FC, at other points along the longitudinal and lateral axes, the vertical illuminance can be zero even on streets that meet the recommended horizontal illuminance targets.

Original languageEnglish
Pages (from-to)139-152
Number of pages14
JournalLEUKOS - Journal of Illuminating Engineering Society of North America
Issue number2
Publication statusPublished - Oct 2009


  • Cross walks
  • Night time visibility
  • Pedestrians
  • Pedestrians accidents
  • Street lighting

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'A methodology for locating the maximum vertical illuminance in street lighting'. Together they form a unique fingerprint.

Cite this