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Qingdao develops advanced 3D “city map” to enhance smart urban management

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By Wang Zhe, People’s Daily

With a simple scroll of the mouse, the city of Qingdao, east China’s Shandong province, comes vividly into view – high-resolutionbuildings rise sharply, their intricate details clearly rendered.

At his workstation, Hu Zhenbiao, chief systems architect at the Qingdao Institute of Survey and Mapping, introduced a city-scale 3D simulation platform: a full-scale digital twin of the city.

Real-scene 3D modeling has become a vital strategic resource and production element in the development of digital cities and the broader digital economy. By offering accurate, spatial-temporal depictions of urban spaces, these technologies provide vital insight into the dynamics of modern city life, infrastructure, and ecosystems.

The platform, officially launched in March 2021 under the leadership of the Qingdao Institute of Survey and Mapping, represents a landmark in urban digitization.

“Behind this platform lies more than six months of aerial photography, the processing of millions of images, and the 3D modeling of hundreds of thousands of buildings,” Hu explained.

Qingdao’s varied topography – marked by hilly terrain and dramatic elevation changes – necessitated the use of oblique aerial imaging to capture raw imagery and build an accurate 3D model.

For this phase, the project team deployed manned fixed-wing aircraft equipped with 150-megapixel, five-lens oblique aerial cameras. The aerial survey covered the entire urban area, achieving a ground resolution of 15 centimeters and maintaining more than 70 percent image overlap to maximize accuracy.

Hu noted that certain structural details – such as eaves and building undersides – were sometimes difficult to capture due to limited aerial angles, requiring on-site supplemental photography. “We used a combination of hybrid restoration and modeling techniques to accurately reconstruct the structures,” he said, pointing to the Qingdao International Conference Center on his screen. “Those eaves, for example, were recreated using 3D modeling.”

In March 2022, following expert review, the project was officially launched for citywide application. Today, the platform covers Qingdao’s entire land area – 11,000 square kilometers – as well as 800 kilometers of coastline, 49 bays, and seven inhabited islands.

“Fire reported on the eastern slope. Please respond immediately,” came the voice over the radio at the emergency command center in Qingdao’s West Coast New Area.

Qi Degang, deputy headof the area’s emergency management bureau, responded quickly. “The nearest water source is Reservoir No. 37 in Lingshanwei, about 700 meters away.”

This exchange occurred during a forest fire response drill on Xiaozhu Mountain. Displayed prominently on a large screen in the command center was a real-time, 3Dforest fire map – showing the fire’s location, affected area, and smoke direction.

“Our drones send back live footage, which is directlyfed into the 3D platform,” explained Mu Kun, head of forest fire response at the emergency management bureau.

A new call came in: “There’s a fork ahead – what’s the fastest route?”

Mu quickly zoomed in, selected a mountain trail and charted a path for the responders. “This trail is only one meter wide. Rescuers will have to go on foot. Elevation gain: 200 meters.”

“The 3D model allows us to act with greater speed and precision,” Qi added. “It helps us identify access routes, calculate burn areas, and direct field personnel efficiently.”

To date, Qingdao’scity-scale 3D simulation platform has been shared with over 60 municipal departments. It supports more than 100 key functions, including disaster prevention and mitigation, urban planning, social governance, and urban renewal. The platform also underpins over 70 digital government service applications and records nearly 100 million uses annually.

“Compared to traditional 2D maps, 3D modeling offers greater realism, dimensionality, and accuracy,” said Xue Hongli, deputy head of the Qingdao Bureau of Natural Resources and Planning. “It creates a holographic digital twin of the physical world, providing strong spatial support for fine-grained urban management.”

Xue emphasized that cities are constantly changing and 3D mapping must evolve in tandem to capture these transformations with fidelity.

At the bureau’s headquarters, staff members examined two versions of a digital model for a former mining site in Qingdao’s West Coast New Area. The comparison revealed tangible signs of ecological restoration – more vegetation and a gentler slope.

Qingdao is home to 898 legacy mine sites. In the past, inspectingthese sites required a full month of on-the-ground efforts. Now, with the help of the 3D model, the same work takes just five days. Since 2023, the city has carried out annual temporal updates to the city-scale 3D simulation platform, enabling it to track urban changes with precision and support data-driven analysis and evidence-ba

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Kwara community under security cordon as Army goes after criminals

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Stephen Olufemi Oni, Ilorin

Kwara State Government has established immediate security cordon around Babanla, a community in Ifelodun Local Government Area, following a security breach by some armed criminals.

The criminals on Friday targeted a police station, attempted to loot a few grocery shops, and a hotel in the community before they were repelled by the security forces and bold members of the community.

In a statement on Friday, the government commended the Nigerian army, gallant policemen, and community folks for the swift response to the situation.

Governor AbdulRahman AbdulRazaq, who has been in constant touch with the security commanders and local vigilante, has directed sustained security lockdown of the axis to neutralise the threat and ensure public safety.

“While further briefings are awaited, the Governor reassures the public that concerted efforts are being made in coordination with the Office of the National Security Adviser, to cleanse the area of the criminals,” according to a statement.

“He also urges maximum support and asks the people not to panic as security forces conduct their operations in the area.”

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NUC Executive Secretary Lauds KU8+ Consortium as 1st of Its Kind in Nigeria

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Stephen Olufemi Oni, Ilorin

The Executive Secretary of the National Universities Commission (NUC), Professor Abdullahi Yusufu Ribadu, has commended the KU8+ Consortium for pioneering an initiative worthy of emulation by other universities in Nigeria.

Delivering the keynote address at the opening ceremony of the 3rd KU8+ Consortium International Conference at Kwara State University, Malete, Professor Ribadu noted that as Nigerian universities are facing growing challenges, such as limited financing and rapid technological changes, institutions need to rethink and expand their core values to meet current realities and societal expectations.

The NUC Executive Secretary, who was represented by former acting Vice-Chancellor of the University to Ibadan, Professor Adebola Babatunde Ekanola, commended the KU8+ for fostering local partnerships through resource pooling and shared expertise, stressing that such collaborations could produce graduates capable of transforming the nation’s economic landscape.

The NUC, he said, looked forward to learning from the outcomes of the consortium’s partnerships.

In her goodwill message, the Kwara State Commissioner for Tertiary Education, Hajia Sa’adatu Modibbo Kawu, reaffirmed the state government’s commitment to strengthening tertiary institutions through strategic investments and policy reform.

“The KU8+ Consortium is proof that collaboration breeds excellence. Kwara State Government, under Governor AbdulRahman AbdulRazaq, continues to invest in education in line with the Renewed Hope Agenda of President Bola Ahmed Tinubu”, she said.

The Chairman of the occasion and Pro-Chancellor of Kwara State University, Professor Abdulganiyu Ambali, OON, described the consortium’s emergence as proof of Kwara State’s growing role as a hub for human capital development.

In his opening address, the Chief Host and Vice-Chancellor of the University of Ilorin, Professor Wahab Egbewole, SAN, emphasised that no university can thrive in isolation.

He added that national development depends on constructive collaboration in teaching, research, innovation, and community engagement, which he said is one of the motivating factors for the KU8+ Consortium.

The host of the 3rd KU8+ International Conference and Vice-Chancellor of Kwara State University, Malete, Professor Shaykh-Luqman Alade Jimoh, emphasised that innovation and sustainability remain central to the KU8+ Consortium’s mission, stressing that the conference theme aligns with KU8+’s vision to collaborate, innovate, and develop society.

The conference, which had the theme “Innovation and Sustainability of Higher Education in a Changing World,” had lead papers presented by Professor Olutayo C. Adesina, a Professor of History at the University of Ibadan, who is also a British Academy Global Professor of History at the University of Manchester in the United Kingdom, and Professor Chinedum Peace Babalola, a former Vice-Chancellor of the Chrisland University, Abeokuta.

Professor Adesina’s paper titled “Mainstreaming the ‘Think and Do’ Initiative into Nigeria’s Higher Education in the 21st Century: Creating Structural Opportunities and Adding Value” challenged the KU8+ Consortium to focus more on being relevant on the local level before aspiring to regional level.

Professor Chinedum Peace Babalola, on her part, emphasised the importance of higher education institutions focusing on producing graduates with the abilities to solve societal challenges.

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Gunmen in military uniform abduct passengers in Benue

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Suspected armed men dressed in military camouflage have abducted at least four passengers from a commercial bus along the Otukpo axis of Benue State.

Zagazola Makama gathered that the incident occurred on Aug. 3 at about 10:00 p.m. near Mechanic Village in Otukpo, when a commercial Hummer bus, en route from Abia State to Otukpo, was attacked by the assailants.

Sources said that the gunmen, believed to be Fulani herdsmen, whisked away between four and five passengers to an unknown destination.

One of the passengers, Sandra Okoh, a resident of Otobi Akpa, managed to escape during the attack and was later found during a joint search and rescue operation by the Nigerian Troops.

She told the security forces that her husband, Okoh Mike, was among those abducted. She also alleged that the bus driver fled the scene with passengers’ luggage and failed to report the incident to any nearby police station.

The security forces have since launched a manhunt for the suspects and intensified efforts to rescue the kidnapped victims.

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