Public safety is the top concern of local leaders attending the Fortune Global Forum, underscoring the strains created by rapid industrial and urban development. Beijing Mayor Wang Qishan said ensuring public safety was a top priority as the capital approached the 2008 Olympics. He said the accelerated pace of infrastructure development and the repositioning of Beijing for more sustainable development were creating new stresses. Tianjin Mayor Dai Xianglong said he was worried about the risk of industrial accidents at the city's chemical plants. 'I fear the phone ringing after midnight to report accidents,' he said. 'Fortunately, it hasn't happened.' Industrial disasters were also on the mind of Chen Deming , governor of Shaanxi province , whose own 'nightmare' was coal mine accidents. Shaanxi, well-endowed with coal, petroleum and natural gas, supplies natural gas to Beijing and Tianjin, but Mr Chen is keen to develop more value-added petrochemical products. For Mr Dai, a key development issue is the building of a US$10 billion high-speed railway line connecting Tianjin with Beijing. The development of the coastal area along Bohai Bay also called for the upgrading of the Tianjin airport and the modernisation of port facilities, he said. The Bohai Bay area promises to be the centre of the mainland's third wave of development, following the Pearl River Delta and the Yangtze River Delta. Mr Wang said he expected the development would sustain Beijing's economic growth after the 2008 Olympics.