Hauling New Treasure Along Silk Road

Hewlett-Packard, the Silicon Valley electronics company, has pioneered the revival of a route famous in the West since the Roman Empire. For the last two years, the company has shipped laptops and accessories to stores in Europe with increasing frequency aboard express trains that cross Central Asia at a clip of 50 miles an hour. Initially an experiment run in summer months, H.P. is now dispatching trains on the nearly 7,000-mile route at least once a week, and up to three times a week when demand warrants. H.P. plans to ship by rail throughout the coming winter, having taken elaborate measures to protect the cargo from temperatures that can drop to 40 degrees below zero.