China's CR450 high-speed train marks breakthrough in commercial speed trial

China's newly-unveiled CR450 bullet train, with a top speed of 450 kilometers per hour (kph) and a commercial operating speed of 400 kph, is set to mark a milestone in the speed of commercial operation of high-speed railways, promising faster, safer and more energy-efficient journeys.

A prototype of the CR450 bullet train that will run at 400 kph debuted in Beijing on Sunday, said the country's railway operator China State Railway Group Co., Ltd.

The train is capable of running at 450 kilometers per hour in test.

Since 2018, China has been researching the foundational theories and key technologies for high-speed rail operating at 400 kph.

After seven years of development, the CR450 prototype was launched, marking a significant milestone as the country completes its exploration into commercial operations at an unprecedented speed.

In 2021, the CR450 technological innovation project was officially launched, focusing on the development of the 400-kph CR450 train and integrated high-speed rail infrastructure technologies.

By 2022, the CR450's technical specifications were finalized and rigorous tests and simulations were conducted.

In 2022 and 2023, new components were tested on the CR450 train on the Mile-Mengzi and Fuzhou-Xiamen-Zhangzhou high-speed railways to verify key technologies and component performance.

In 2024, production of the CR450 prototype began, incorporating smart manufacturing techniques and robust quality control to ensure the smooth rollout of the first train.

"The CR450 train is a new generation of trains developed to strengthen and expand China's leadership in high-speed rail technology. It features a higher speed, enhanced safety, greater energy efficiency, smarter operation and improved passenger comfort," said Zhao Hongwei, chief researcher of the China Academy of Railway Sciences.

The CR450's key performance indicators, namely operating speed, energy consumption, interior noise and braking distance, are setting a new international benchmark.

The train is 22 percent more energy-efficient, with a 10-percent reduction in weight and a 2-decibel reduction in cabin noise.

Passenger service space has increased by 4 percent and intelligent features, including advanced train control, driver interaction, safety monitoring and passenger services, have been upgraded.

"Next, we will meticulously organize and schedule a series of tests and assessments in multiple scenarios and at various speed levels to further evaluate the CR450's performance and accelerate its readiness for commercial operation," said Zhang Dayong, director of the Science and Information Technology Department of China State Railway Group Co., Ltd.

China's CR450 high-speed train marks breakthrough in commercial speed trial

China's CR450 high-speed train marks breakthrough in commercial speed trial

China's CR450 high-speed train marks breakthrough in commercial speed trial

China's CR450 high-speed train marks breakthrough in commercial speed trial

Iran's official news agency IRNA said on Sunday the country has rejected taking part in the second round of the peace talks with the United States, after U.S. President Donald Trump said new negotiations would take place in Pakistan on Monday evening.

"My Representatives are going to Islamabad, Pakistan -- They will be there tomorrow evening, for Negotiations," Trump wrote in his Truth Social post on Sunday.

Trump also said that the U.S. has offered a "fair and reasonable" deal, and if Iran reject the deal, the U.S. will "knock out every single Power Plant, and every single Bridge, in Iran."

Iran's absence from the second round of talks "stems from what it called Washington's excessive demands, unrealistic expectations, constant shifts in stance, repeated contradictions, and the ongoing naval blockade, which it considers a breach of the ceasefire," IRNA said in a post on its English account on social media platform X.

In another report published in Farsi, IRNA said reports released about the second round of peace talks between Tehran and Washington in Islamabad are "not true."

It described the reports released by the United States as part of a "media game and in line with the blame game" to pressure Iran, stressing that the U.S. "excessive, illogical and unrealistic demands, frequent changing of positions, constant contradictory remarks, continuation of the so-called naval blockade" have so far prevented the negotiations' progress.

IRNA added under the present circumstances, there is "no bright prospect" for fruitful negotiations.

On Feb. 28, Israel and the United States launched joint attacks on Tehran and several other Iranian cities, killing Iran's then Supreme Leader Ali Khamenei, along with senior military commanders and civilians. Iran responded by launching waves of missile and drone strikes targeting Israel and U.S. bases and assets in the Middle East, and exercising tight control over the Strait of Hormuz.

A ceasefire was achieved between the warring parties on April 8, which was followed by lengthy talks between the Iranian and U.S. delegations in Pakistan's capital Islamabad on April 11 and 12. After the peace negotiations in Islamabad collapsed, the United States imposed its own blockade on the waterway.

The Iranian and U.S. delegations were reportedly expected to hold another round of peace talks in Pakistan soon.

Trump affirms new round of talks in Pakistan while Iran rejects