 |
  |
| Guideline | Lighting Design Guideline 1 |
| Title | Intensity and Uniform Coverage |
| Text | Intensity levels and uniformity ratios should be based on adaptations from the American National Standards Institute (ANSI) and Illuminating Engineering Society (IES). |
| Commentary | None |
| Guideline | Lighting Design Guideline 2 |
| Title | Minimize Lighting Spillover |
| Text | Use proper shielding and aiming to minimize lighting spillover into adjacent properties, especially residential communities. |
| Commentary | Migration of light pollution should be in accordance with approved environmental document(s). |
| Guideline | Lighting Design Guideline 3 |
| Title | Quantity of Plaza Approach and Departure Lights |
| Text | High mast and tower pole designs for mounting luminaries should be used to minimize the addition of roadway hazards that must be protected by barrier if inadequate clear zone is available or is impractical. |
| Commentary | Tower design, and to a lesser extent high mast design (based of an internal luminaries lowering mechanism) must address the issue of accessing the luminaries for maintenance. |
| Guideline | Lighting Design Guideline 4 |
| Title | Toll Lane Lighting |
| Text | Lighting intensity and uniformity should be based on adaptations from the American National Standards Institute (ANSI) and Illuminating Engineering Society (IES). |
| Commentary | Toll lane lighting should provide a minimum of 20 foot-candles for at least 25 feet each side of the tollbooth or automatic machine (i.e., coin, payment or ticket issuing) centerline, subject to consideration of contributions from other site-specific light sources. This level of lighting is intended to enhance plaza security including camera video and improve visibility of agency staff crossing a toll lane. |
Table of Contents | List of Tables | List of Figures | Previous Section | Next Section | HOME
