Low Pressure Sodium lights
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- čas přidán 11. 03. 2024
- Low Pressure Sodium Lights
Embark on a solo educational drive with me along the A13 in Thurrock, Essex, where the night is lit by a rare spectacle: the low-pressure sodium (SOX) streetlights. These lights are not just remnants of a bygone era; they are beacons of efficiency and simplicity. Emitting a monochromatic wavelength, they provide excellent visibility while minimizing glare, making them a driver’s ally against the darkness.
As we cruise under these orange-hued lamps, let’s delve into the fascinating details of the A13 itself. This arterial road has recently undergone a significant transformation, with a widening project that started in 2017 and was completed at a final cost of £147m, nearly double the original estimate12. The project included expanding the road from two lanes to three between the A128 Orsett Cock roundabout and the A1014 (The Manorway), replacing four bridges in the process2.
This expansion serves not just the local community but is a vital link in the South Essex corridor, aiming to reduce congestion, improve journey times, and support economic growth2. The A13’s journey from the M25 to Stanford-le-Hope is now a continuous three-lane carriageway, a testament to the region’s commitment to infrastructure and development2.
So, as you join me on this drive, you’re not just passing under streetlights; you’re witnessing the intersection of history, technology, and progress. The SOX lights, with their warm glow, are a comforting constant in a landscape of change. Together, let’s appreciate the harmony of past and present as we navigate the A13’s illuminated path.
Growing up I disliked sodium street lights -- both the high and low pressure varieties, but particularly the low. But now that they are dwindling in number, I find I appreciate them more.
At the height of sodium's dominance, I used to treasure the soft moonlight glow of the last remaining mercury vapour lamps. Then the warm, clear light of metal halide become the fresh novelty.
I've never quite grasped why LED street lights are mostly configured to provide white light. White light is often a nice choice for places where people congregate and spend time, but I think a monochrome, yellow, orange or red would often make more sense.
There's someone walking in the middle of the road at 1:30?!