The 3,300 year-old-city of Xi'an is perched on the tip of China's loess highlands. Its surrounding yellow earth was the source material for the city's world-famous terracotta soldiers, an army of statues built in 200BC to guard China's first emperor in the afterlife.

The yellow earth was once seen as a symbol. Back in the 1980s, when many Chinese were still not confident about the nation's economic rise, it was seen to represent isolation from the rest of the world and slow change. The bright development was blue, near the ocean and the coastal cities built on foreign investment and exports.

But critics asked if such a divide was necessary. Must yellow earth and blue ocean be symbols of two totally different economies and living conditions?

Don't forget, they argued, that the city of Xi'an was not only the center of some of the powerful ancient empires in world history, but also the key eastern destination and supply hub for the Silk Road, the once-flourishing international trade route across the Eurasian continent.

From the first century BC to the 800s, before the world knew such seaports as Rotterdam, New York, Hong Kong or Shanghai, Xi'an - called Chang'an back then - was one of the largest commercial ports in the world.

Merchants speaking various languages gathered in its inns, trading gems from Afghanistan, glassware from Europe, fruit and spices from Persia, in return for the local products, most famously silk and chinaware.

One difference from the modern times was that the shipments that Xi'an sent away were carried on the camel back, instead of by ships.

As a natural linkage between the eastern and western parts of China, and between China and its western neighbors, indeed, why can't Xi'an regain its past commercial glory along with China's rise in economic prowess, in the age of globalization?

It can. With all modernized land and air transportation conveniences, it can help China better serve its partners in Central Asia and develop alternative modes of trade with entire Europe.

Thus a daring, although not entirely unfamiliar, concept was proposed by the local economists: Xi'an should build itself into a port-on-land.

It should be like the Port of Shanghai, to become a modernized hub for China's west-bound trade by land transportation.

It should, once again, be a host of merchants from "ten thousand countries", as it was described poetically in ancient times, although they don't have to come to city leading their caravans.

An inland port? English teachers from local universities scratched their head, as Han Song, deputy mayor of Xi'an recalled, when they were asked by the municipal government to translate the name of the concept.

"In the end, we decided to give it a straightforward English name, just to call it Xi'an International Trade and Logistics Park."

In ITL's early days, Han said, skepticism abounded as a city like Xi'an, which is some 1,300 kilometers away from Shanghai, 1,200 kilometers from Qingdao (a northern China port city) and 1,100 kilometers away from Beijing and Tianjin, can play such a key role in the country's foreign trade and logistics service industry.

As it turns out, however, Xi'an has been fortunate despite, or precisely thanks to, its distance from the country's eastern shore.

The city is well-positioned on not only many key transportation lines connecting China's sea ports with its heartland, but also a few important national economic development programs, most importantly the central government's strategic attempt to lead China's economic reform and opening up from its industrialized coastal cities in its more densely-populated eastern regions to the country's vast western regions that lag still behind.

Beijing's another strategic ambition, namely to let more people move into the cities, and arrange for them off-farm jobs, may allow Xi'an, as one of the three existing large cities in West China (the other two being Chongqing and Chengdu), to become a main stage for various business breakthroughs and innovations.

In physical infrastructure, Xi'an is the hub connected with railways to Beijing, eastern port cities like Shanghai, Tianjin, Qingdao and Lianyungang, the southwestern city of Chengdu, and westward, through Xinjiang Uygur autonomous region, to access to Kazakhstan and Russia's Far East rail system. Xi'an and Beijing are already connected by high speed passenger train service, the fastest of which takes only about four and half hours for a one-way trip.

For air transportation, Xi'an has an airport that ranks among the top 10 in China.

Overseas, it is connected with major East Asian destinations by direct flights.

In June, it just opened a direct flight to and from Helsinki, its first in Europe. In 2012, it handled 23 million passengers, more than double from 2008, along with 170,000 metric tons of cargo.

The ITL is designed to sit close to Xi'an's all major transport facilities. Part of it is the Xi'an Railway Container Center Station, one of China's 18 rail container hubs designated by the national railway authorities. With some 600 million yuan in investment, the rail container center station started building in September 2008, and is already in full operation from July 2010.

Adjacent to the rail container center station is a bonded zone, an area under the supervision of the customs, where companies benefit from tax breaks and tax rebates.

Jin Wang, operation and sales manager for Tata Steel, said the company manages from Xi'an (based in the ITL) its distribution and delivery services across West China.

West China, mainly Xi'an, Chengdu and Guiyang (Guizhou province), boasts 40 percent of China's aviation industry, and generates regular demand for Tata's supply of special steel materials, Wang said.

With 6 billion yuan (almost $1 billion) in commitment, the building of China South City (Xi'an), a sprawling trade and exhibition center, is perhaps the champion of all investment projects being built up right now in the ITL.

The runner-up may be the so-called Midwest Commodity Exchange Center, a future exchange for metals and coals, whose investment budget is 3 billion yuan.

Nearby, there is the largest trade and distribution center for books and publications in Northwest China, a 1 billion-yuan joint investment project for a Singaporean company and a company based in Shanxi province (to the east of Shaanxi).

A logistics center for pharmaceutical and medical products is still under construction. With some 300 million yuan in planned investment, it also claims to be the largest in Northwest China.

Many items still remain on the developers' map, including the design of a "highway port" for Xi'an and a logistics center for telecommunication equipment and parts. Logistics and trading companies, Chinese and international, are moving into the ITL.

On the construction site of the future China South City, Manager Sha Longzhou reported that part of the future facility was already booked by companies from Central Asian republics.

But of course, the ITL's designed land (44.6 sq km) is far from filled as yet.

Road and subway connections with the Xi'an downtown are either being revamped or being built.

It is only five years since the ITL began transforming from concept into reality.

All that has been done so far is but the prelude to a modern edition of merchants from "ten thousand countries" in Xi'an. The curtain has not risen for the main show as yet.