What are the main differences between the urban functions of London and Washington?

London is a city with a population of about 320,000 people, accounting for the fifth largest population in Ontario. In the Lake Erie region, London is the most important city. There are many important industries, commerce and manufacturing industries in the city. For example, a large company specializing in insurance matters is located in the city center. In addition, London is home to the largest university in Canada, "The University of Western Ontario". Overall, London is a peaceful, orderly and conservative city, and is the epitome of London, England. The city of London has its own river called "Thames River", a park "Hyde Park" and a main street "Oxford Street". Even so, London does not have many places for tourists to enjoy, and it is not as diverse as Toronto or Ottawa; however, because it is very close to the US-Canada border, most people who want to visit the United States will Take in the sights of the city of London. The streets in the city can be roughly divided into "Dundas Street" which runs east-west and "Richmond Street" which runs north-south; and "York Street" extending from the city center to the south. York Street), leading to Talbot Street to the west, Oxford Street to the north and Waterloo Street to the east. London can be said to be a city that is well connected in all directions and very convenient. Washington is the capital of the United States and the political center of the world. Every move, every frown and every smile in this city is like throwing a stone into a pool, and the repercussions will affect the entire world. This world-famous city is located in the eastern United States, on the northeastern bank of the Potomac River, with an area of ??177 square kilometers (including Water City) and a population of 554,000. In terms of area and population, it is not the largest city in the United States, but it is the most beautiful city in the United States. There are no towering skyscrapers, noisy and crowded environment like New York or Chicago, and no smoke-filled chimneys to be seen. What you see are mostly wide and clean streets, majestic monumental buildings, cultural facilities of various shapes and dotted green parks. Everywhere contains the style of a capital city of a great country. History History The growth history of the world-famous city On May 15, 1800, John 6?1 Adams, the second president of the United States in Philadelphia, instructed the cabinet to make arrangements to move to Washington, the permanent capital of the United States. He requested that government ministries should start operating in Washington on June 15. After the presidential order was issued, the relocation began immediately. This was not a big deal at the time, because there were only 126 officials and civil servants in charge of various government ministries. Their personal belongings were transported by horse-drawn carriage, while government documents and archives were transported by ship from Philadelphia to Washington via the Potomac River. Adams himself arrived in Washington on June 3 of that year, and most government officials arrived before the president. At that time, there were very few houses in Washington. Most were low-rise huts, which were in perfect contrast to the government buildings under construction. Everywhere you looked, you could see a prairie, except for a few brick buildings and a few temporary rooms on the edge of the fields. From the outside of the erected hut, there is almost an unobstructed view. The population is only 14,000. The White House has just revealed its outline, the Capitol Building has initially completed a wing, and the Treasury Building has no shadow yet. Looking around, low-rise houses of various tribes are scattered around surrounded by farmland. At that time, most landowners in Washington were still farmland or wilderness, full of swamps, pastures and forests. There were only 379 private residences in the city, and shops and hotels were just being built. Several government buildings stand out among the farmhouses in Washington. Washington has completely changed since the U.S. government moved to the Potomac River. In the 19th century, the Capitol Building, the White House and office buildings of various government ministries were built one after another. On August 24, 1814, the British invaders captured Washington and set fire to the Capitol Building, the President's Residence, and government ministries. Under pressure from U.S. military reinforcements, the British troops withdrew from Washington on the 25th. Since then, the initiative in the war has gradually been taken by the US military. After the US military regained Washington, it began a series of tasks to rebuild the capital. In addition to rebuilding the Congress and the White House, office buildings of various government ministries were built one after another. By the 1820s and 1930s, Washington had begun to take shape. In 1835, a railroad was built between Washington and Baltimore, and three years later it was extended to New York. However, development in Washington at that time was limited to the portion east of the Potomac River. Because people at that time felt that the Potomac River was too wide and it was impossible to relocate government departments to the west of the river. Simply, Congress passed a resolution in 1850 and transferred the part of the land west of the Potomac River that Virginia had assigned to the capital to the state of Virginia. At this point, Washington's total area was reduced to 68.25 square miles (177 square kilometers), including 15 square kilometers of water. The Civil War from 1861 to 1865 was a period of rapid development in Washington, with a population surge.

In order to defend the capital, Lincoln ordered the deployment of troops to the capital only one month after becoming president. Thousands of troops gathered in Washington, and freed black slaves also came to the capital from the south to find a new life. In the first two years of the Civil War, the capital Washington was the focus of contention between the North and South armies. As the war raged on, Washington's churches and spacious homes were filled with wounded Union troops, creating a tense atmosphere. The Civil War ended with the Union Army's victory and the United States remaining united. Since then, Washington has entered a period of rapid development. Washington By 1880, Washington's population had grown from 131,700 in 1870 to 177,600, making it one of the fastest-growing large cities in the United States during this period. The characteristics of modern cities began to emerge during this period. Telephones were introduced to Washington in 1877, and a year later, 119 telephones were installed in various government offices. The first apartment buildings in Washington were built in 1879, and electric light appeared in the city in 1881. By 1888, Washington had its first trolley car. Washington's urban transportation developed soon after the capital was established. In the 18th century, horse-drawn carriages were the main public transportation in Washington. By the end of the 19th century, Washington was dominated by trams. In 1900, Washington had about 200 miles (about 320 kilometers) of tram tracks. The automobile made its debut during the heyday of streetcars. In 1897, a woman named A. L. Barber purchased Washington's first car. By 1963, there was an average of one car for every 3.5 people in Washington, and there were a total of 225,000 registered cars in the city. During this period, there was an average of one car for every 2.6 people in the country. In 1990, there were 252,405 registered cars in the city. The number of cars per capita in Washington is still at a low level in the United States, which is related to the city's better public transportation system. Entering the 20th century, Washington's urban construction and population continued to develop. From 1900 to 1930, Washington's population increased from 278,718 to 486,869. During the "Great Depression" in the early 1930s, the United States experienced its most severe economic crisis, with a surge in unemployment and social unrest. Washington is one of the cities in the United States that has the most strikes and demonstrations. In March 1933, Franklin Roosevelt was elected president and implemented the "New Deal", which strengthened the government's intervention in the economy and finally put the country's economy on the road to recovery. After World War II, Washington's population reached its peak, with a total population of 802,178 in 1950. In the 20th century, the number of employees in the U.S. federal government agencies increased significantly, so much so that people jokingly said that the only industry in Washington was the printing industry, referring to the various printing plants in Washington that constantly printed various government documents. One of the important reasons why the population of Washington's urban area has been declining since the 1960s is that nearly 300,000 people working in various government agencies and related departments live in the suburbs of Washington. Another large number of residents have a less stable life in Washington. After working for the government for a few years, as the new president takes office and the new cabinet is formed, they may leave Washington to find a new position. Behind them, a group of new residents moved to Washington from elsewhere. Washington's largest industry is tourism. By the 1990s, 18 million people traveled here every year, driving the city's tourism-related industries and causing the hotel and catering industry to develop rapidly. Buildings are growing in downtown Washington, and farmland recedes into the surrounding areas, disappearing behind dense forests. Only the rich green is lingering, and Washington is regarded as a capital in the forest, or a city surrounded by lawns. Since the founding of the capital, people here have attached great importance to urban greening. In order to make the capital more beautiful, Jefferson advocated tree planting in the capital and personally planted Italian poplars on Pennsylvania Avenue. The trees on both sides of Pennsylvania Avenue have been replaced several times since then, and lindens, oaks, maples, etc. have been planted. This practice of allocating funds from the city government to plant trees and flowers continues to this day. Greening the capital is a daily task of the city government. Every year, 3% of the funds are allocated for greening of street parks and roads, thus making Washington the world's most famous tree. and one of the cities with the most flowers and plants. Washington is known as the "Garden City" because of its green trees and blooming flowers in spring. The city's parks and recreational areas cover an area of ??3,400 hectares, of which the national park area reaches 3,000 hectares, accounting for 20% of the urban area.

It can be said that except for parking lots, roads and stadiums, almost all open spaces are covered with trees and flowers, and the per capita park green space exceeds 40 square meters