Research Journal-Entry 4 and 2 Student Choice

Annotated Bibliography 4:
-Cite
Potholes and Potholes Ranger. Seattle.gov. Department of Transportation, Dec. 2009. Web. 04 Apr. 2010.

-Summary
Assertion-Regardless of weather, potholes are a symptom of pavement that is wearing out.

Potholes occur most often during spring and winter, following periods of cold temperatures and rain or snow. Weight of traffic can increase potholes. Potholes are temporary fixes. For longer-term solution is to re-pave the street. Material used to fill potholes doesnt stick well to surrounding pavement when cold or wet. Repairs made in the winter may not last longer than on dry, warm pavement. Water and traffic cracks and breaks pavements. Water gets under the pavement and cracks, this could erode the material used under the pavement. Water under pavement can freeze and expand, and thaw and conctract during winter time.

-Reaction
Great information. Will use in my paper.



Student Choice 1-Annoated Bibliography:
-Cite
Potholes. Clermontengineer.org. Clermont County. n.d. Web. 04 Apr. 2010.

-Summary
Assertion- An important part of road maintenace is the repair of potholes.

When moisture gets into pavement, freezing, expanding, and then thawing. This weakensthe pavement and causes potholes. Traffic then loosen more pavement then it crumbles and pops out. General criteria for repair is a hole in the pavement that is 2 inches or more deep and over 8 inches in diameter. During winter, potholes are temporarily repaired with cold asphalt mix because manufacturers of hot asphalt are closed. Road repair comes first to high volume and high speeh routes and to access for emergency. Second, is to schools and commercial business. Third priority roads are low volume rural routes. Potholes could cause accidents, damage car's tires, wheels, shocks, struts, and springs.

-Reaction
This is good additional information about potholes. Found out what size a potholes has to be before getting repaired. I would like to know more in depth about damages that can be done to cars.


Student Choice 2-Free Writing
I have collected a lot of information on concrete pavement and asphalt pavement. Purpose of roads and highways is for access and mobility. Back in historic time, Rome and China had trails used by caravans to frieght animals. But concidering modern history, highways began when automotive was introduced in the 1900's.

There is too much information, information over-load here! Im going to try to outline my paper. Hopefully it will narrow down some information of the research I to use. First, I like to state my proposal. Then, reflect back on history of roads, when they were used and why. Followed by history of concrete and asphalt use. Also, showing what the material is made of. Pros and cons of the pavement. Damages dont to asphalt road vs concrete. Such as more potholes and damages of cars due to potholes. Maybe some stats if possible.