Читать книгу Pittsburgh Main Thoroughfares and the Down Town District - Frederick Law Olmsted - Страница 7

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The down town district is substantially that part of the city known as the Point District. It is bounded by the two rivers and by the steep hills to the eastward, and within this section of the city, as elsewhere, the basic problem is that of the means of transportation—specifically the problem of the street plan. There is a daily circulation of inward and outward travel to be borne by a limited number of main arteries, of which those leading to most of the tributary districts are bridges. It is clear that the bridges can be enlarged or increased in number at any time when the volume of travel justifies the expense of reconstruction.

A one-span bridge across the Danube at Budapest

Considering the fact that Pittsburgh is a world capital in the steel bridge industry, that its busiest quarters are sundered by three of the world's big rivers, and that it is traversed in every direction by ravines which demand the construction of mighty viaducts, it is a striking and rather shameful thing that it does not possess a single bridge over its rivers that is notable among the bridges of the world either for its beauty, for its perfect engineering adaptation to its purpose, for its size, strength or amplitude. In fact the bridges of Pittsburgh, compared with those of other great cities, are rather unusually limited in capacity and lacking in the qualities of impressiveness and beauty.

It is a case of the cobbler's children going barefoot: when a man sells shoes at wholesale in every quarter of the globe, it is time for his own family to be well shod. Pittsburgh can afford to have, and owes it to herself to have, the very best of bridges. No time or pains or reasonable expense should be spared in planning future bridges, whether they be on new locations or to replace existing structures, to get the best designs that the highest engineering skill combined with the highest artistic ability can produce. Bridge-builders everywhere should be enabled to think of Pittsburgh not merely as a source of cheap raw material for bridges, but as an all-round leader in the bridge-building art.

Bridge of distinctive character at Budapest

To the eastward, where the most active growth of the city has been taking place, the arteries consist not of bridges over open rivers, but of streets, very limited in number by reason of the form of the land, and so situated that the cost of securing greater capacity will increase by leaps and bounds with the rise of land values and the erection of new structures. The first step in planning improvements for the heart of the city must therefore be to consider the possibilities for improvement in the eastward arteries.