[Papers submitted through the Public Roads Administration to the Fourth Pan American Highway Congress]
Contributors: United States. Public Roads Administration
Publisher: [Public Roads Administration]
Published: 1941
Place of publication: Washington, D.C.]
Language: eng
Subjects: Roads; Congresses; Pan American Highway System
Other titles: Highway planning in the United States; Determination of economic priorities for highway-system planning; Highway "flight strips" for aircraft; Access roads for military reservations, naval establishments and production plants; Road maps and mapping classification of roads; standardized road condition symbols; condition charts; Geometric design of highways; Geometric design problems in highway location; Highway guards, their development, design and use; A resume of traffic paint formulation and application research; Progress in studies of the durability of concrete; North Carolina's experience with the use of treated timber in highway construction; Sonic method of testing concrete; Subgrade stabilization and its relation to flexible and rigid pavement construction; Practical methods of soil stabilization; Roadside development and control; Metropolitan traffic troubles; Automobile parking and terminals in business districts; Pedestrian traffic problems; Training young drivers; Use of glossaries to standardize Spanish and English technical terminology; Pan American Highway System, extension from the United States to Cuba and Mexico; Convention on the regulation of pan American automotive traffic and its relation to inter-American touring