BESC 201 10 11 2013 Lecture 18 Outline of Last Lecture I Risk Assessment and Risk Management Outline of Current Lecture II Chapter 18 Central Case Study III Our Urbanizing World Current Lecture 10 11 2013 The Urban Environment Creating Sustainable Cities Central Case Study Managing Growth in Portland Oregon The state legislature passes Senate Bill 100 a sweeping land use law required every city and county to draw up a comprehensive land use plan in line with statewide guidelines Urban Growth Boundary UGB a line on a map intended to separate areas desired to be urban from areas desired to remain rural In the view of its critics the Great Wall of Portland is an elitist and intrusive government regulatory tool Ballot Measure 27 required the state to compensate certain landowners if government regulation had decreased the value of their land State and local governments did not have enough money to pay claims The measure had been promoted to voters as a way to protect the rights of small family landowners but most claims were filed by large developers Ballot Measure 49 protects the rights of small landowners to gain income from their property by developing small numbers of homes while restricting large scale development and development ins sensitive natural areas Our Urbanizing World Urbanization shift from the countryside into towns and cities Two pursuits become more important 1 Make our urban areas more livable by meeting residents needs for a safe clean healthy urban environment 2 Make our urban systems sustainable by creating cities that can prosper in the long term while minimizing our ecological footprint and working with natural systems Industrialization has driven urbanization These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Urban populations are growing for two reasons 1 The human population overall is growing 2 More people are moving from farms to cities than are moving from cities to farms In developed nations urbanization has slowed Suburbs the smaller communities that ring cities Today s developing nations people mostly still reside on farms and are urbanizing rapidly Environmental factors influence the location of urban areas Environmental variables such a climate topography and the configuration of waterways influence whether a city will succeed including some corridor for trade that has driven economic growth Powerful technologies and cheap transportation by fossil fuels have allowed cities to thrive even in resource poor regions People have moved to suburbs As affluent people moved outward into the expanding suburbs jobs followed The suburbs in 20th century America was enabled by the rise of the automobile an expanding road network and inexpensive and abundant oil The U S government s development of the interstate highway system was pivotal in promoting these trends By allotting more space to each person suburban growth has spread human impact across the landscape
View Full Document
Unlocking...