https://twitter.com/bateswalsall1/status/1264308701269233665?s=20
The twitter link above shows a video of a foodbank near where I live in London in a shopping centre in Elephant and Castle. This is a foodbank queue for the unemployed and those receiving benefits. This is not a queue for the homeless. It also shows close proximity and in some places the inability to distance and follow national guidance.
"Currently, there are no studies on the survival of the COVID-19 virus in drinking-water or sewage. The morphology and chemical structure of this virus are similar to those of other coronavirusesa for which there are data about both survival in the environment and effective inactivation measures. This guidance draws on the existing evidence base and current WHO guidance on how to protect against viruses in sewage and drinking-water."
and
"The COVID-19 virus is enveloped and thus less stable in the environment compared to non-enveloped human enteric viruses with known waterborne transmission (such as adenoviruses, norovirus, rotavirus and hepatitis A). "
Link: Water, sanitation, hygiene, and waste management for the COVID-19 virus, Interim guidance, 23 April 2020 by WHO and UNICEF: https://www.who.int/publications-detail/water-sanitation-hygiene-and-wa…
These excerpts from WHO regs, relate to Aalok Khandekar’s draft commentary, “Heat and Contagion in the Off-Grid City” in relation to mentioning hepatitis.
And, also to a comment in previous weeks around air transmission and sewage across the border in north and south America made by Kim Fortun
Smart autoalarm guardrail is designed for helpping people emergency contact and remind the other drivers when car accident happen in remote area. People will drive on some remote area, or late night. If car accident happens, might be no one know the accident is happen. This design is help the litigant automatically make a emergency call, and send the location through the GPS when the car is crash the guardrail. As well as, it can turn on/flash the light within the accident area to warn the other drivers.
Smart guardrail is concept design by Yuguo chen and Changlin He, who are from School of Design, Hunan University in China.
This design could help people in an unknow emergency situation, for example, the driver pass out when the traffic accident happen, and this design can help people to save life. However, I think this concept design might be cost a lot if it is applied into real life, because it means there are lots of guardrail need to install this system, and the government also need to prepare another extra fee for repair the guardrail after every accident.
The smart guardrail is designed to be used in some remote area and highway.
Smart Guardrail is autoalrm and could be send location to the nearset emergency centre by GPS when the car crash into the guardrail. As well as the warning light within the area will be swithched on to avoid the potential sencond accident. The system is design to install into the highway guardrail, and use the circuit to make the system work. Therefore, the materials might be include electrical wire and circuit, and also plastic caution lights.
This concept design is supposed to install on the highway guardrail and work automatically in a pubilc area, therefore there is no specifically skill need to learn.
Smart Guardrail is considered as a good concept design, because it can be solve the emergency problem for traffic accident in some situation. This design is applied a common materials and method to solve problem. It is a small change and might make a big influenced. But the design could be used or not is depend on the cost would be proportional to the value or not.
This concept design is create a market which is within more functions and technologies for guardrail. In the existing market, there are some good design highway guardrail, such as EZY-guard smart guardrail. Most of the existing product are applied outter shapes and physical structures rather than some electrical technology. Compare to the existing products, this concept design is more challenged by the cost.