ArcGIS Online
1. The Concentric Model has the CBD in the middle of the city, the second concentric circle is the zone of transition, the third concentric circle is the independent workers homes' zone , the fourth concentric circle is the zone of better residences and fifth one is the commuter's zone. Houston, as shown in the second image has the CBD in a central area of the city. In other words all the important office buildings are located in the same central location in downtown Houston which creates a central business hub. The disadvantage of this model is that the amount of traffic that is created by having everything in the same central location must be tremendous.
2.The Sector Model like the Concentric model has the CBD in the middle of the city but it differs because the high class residential area is found in one long slender sector that starts from the CBD, the middle class residential areas are found on either side of the high class residential zone and opposite the high class residential zone on the other side of the CBD. The low class residential area and transportation and industry sectors are found in adjacent sectors that go north and south of the CBD. Houston, as shows in image one, has a high class residential long and slender sector, as shown by the average income per household layer, that shoots out of the CBD to the left. Having one sector dedicated to the rich means that the businesses that produce expensive goods and service know where to locate in a city so that they can potentially have the most customers. The disadvantage of this model is that the very rich seem to be isolates from the rest of the city which just creates another barrier more physical then social economic between the wealthy and the poor.
3.The Multinucleated Model like the rest has the CBD in a fairly central location but half of the CBD is surrounded by low class residential areas and a wholesale zone while the other half is surrounded by medium class residential areas. Adjacent to the far edge of the medium class residential area is the outlying business district, the high class residential area, and the residential suburb. On the outskirts of the low class residential area lays the heavy manufacturing and industrial suburbs. The top half of Houston's CBD, as seen in image two, is surrounded by larger plots of land with greener yards (medium class residential areas) while the bottom half of its CBD is surrounded by smaller plots of land with less greenery (low class residential areas). The advantage of this model is that not as many people work in the CBD but some may work in outskirt locations like heavy manufacturing or the outlying business district which probably creates less traffic in the city. The disadvantage is that the gap between middle class and lower class is probably much bigger because of the geographical set up of the two classes in this model.
2.The Sector Model like the Concentric model has the CBD in the middle of the city but it differs because the high class residential area is found in one long slender sector that starts from the CBD, the middle class residential areas are found on either side of the high class residential zone and opposite the high class residential zone on the other side of the CBD. The low class residential area and transportation and industry sectors are found in adjacent sectors that go north and south of the CBD. Houston, as shows in image one, has a high class residential long and slender sector, as shown by the average income per household layer, that shoots out of the CBD to the left. Having one sector dedicated to the rich means that the businesses that produce expensive goods and service know where to locate in a city so that they can potentially have the most customers. The disadvantage of this model is that the very rich seem to be isolates from the rest of the city which just creates another barrier more physical then social economic between the wealthy and the poor.
3.The Multinucleated Model like the rest has the CBD in a fairly central location but half of the CBD is surrounded by low class residential areas and a wholesale zone while the other half is surrounded by medium class residential areas. Adjacent to the far edge of the medium class residential area is the outlying business district, the high class residential area, and the residential suburb. On the outskirts of the low class residential area lays the heavy manufacturing and industrial suburbs. The top half of Houston's CBD, as seen in image two, is surrounded by larger plots of land with greener yards (medium class residential areas) while the bottom half of its CBD is surrounded by smaller plots of land with less greenery (low class residential areas). The advantage of this model is that not as many people work in the CBD but some may work in outskirt locations like heavy manufacturing or the outlying business district which probably creates less traffic in the city. The disadvantage is that the gap between middle class and lower class is probably much bigger because of the geographical set up of the two classes in this model.