近年来,我国在公共交通建设方面投入加大,一方面,公交线路数量猛增,公交网络覆盖越来越广,另一方面,公交车辆更新、升级加快;而北京作为首都,在公共交通的发展上更是走在了全国的前列。为了解目前北京公交车辆的运行状况,《商用汽车》杂志记者从本期开始将陆续走访北京的多条公交线路。本期记者调查的公交线路是121路。 In recent years, China has increased its investment in public transport construction. On the one hand, the number of bus routes has soared, and the coverage of public transport networks has been getting wider and wider. On the other hand, buses have been upgraded and upgraded rapidly. Beijing, as the capital city, Development is walking in the forefront of the country. In order to understand the current operation status of Beijing buses, the reporter for “Commercial Vehicle” magazine will successively visit many bus lines in Beijing from this issue. This reporter surveyed the bus line is 121 Road.