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1000 years

jradams1
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Climbing this "disposal" cell was the main event of our guided tour of the Weldon Spring's Interpretive Center. It represents the "finished product" of the toxic waste clean up project and Legacy Management site. Engineered and constructed with 8 layers of strategically chosen materials, the cell is expected to "deter the migration of [its] contaminants" for up to 1000 years. Thus, it is really more of a storage cell than a disposal cell...

Some of the questions coming from our group concerned the criteria of assessment used to determine the cell's long term durability and functionality. For instance, the cell was designed to control and treat leachate--water that has become contaminated from seeping through the cell--but this capacity has its limits. Though the cell has been designed to handle well-over the historical record of rainfall in the area, climate change has rendered history an ineffective means of predicting the severity of weather in the future.

Another concern is the transfer of knowledge about the cell and its toxic contents. How do we make sure no one opens it up (or blows it up) over the course of 1000 years? The strategy of the DOE is to monitor the cell by testing the local area for contaminants, maintaining strict military surveillance over the area, and by using the interpretive center to educate tourists and the local community about the cell, i.e. Legacy Management. But the US federal government's (or any institution's) ability to keep this up for 1000 years is obviously questionable, at the very best. What is certain here is that, by managing nuclear waste, with its inhuman time scales and the correlate amplification of complexity, we are venturing into uncharted waters. The DOE wants to create the impression that everything is under control and it may be, for the time being. It is also reasonable to take pains not to incite widespread fear and panic. But it is similarly important to recognize that we, in this moment, simply cannot be in control over 1000 years of possibility.

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xiaox
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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. 

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xiaox
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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. 

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xiaox
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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.

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xiaox
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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.

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xiaox
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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.