At double-line junctions trains passing over the diamond crossings evidently block traffic going in the opposite direction to that in which they are travelling.
Workmen are killed and injured in this way, both while on duty and when going to and from their work; passengers, with or without right, go in front of trains at stations and at highway crossings at grade level; and trespassers are killed and injured in large numbers on railways everywhere, at and near stations, at crossings, and out on the open road, where they have no shadow of right.
In many instances old level crossings have been replaced by over-bridges with long sloping approaches; in this way considerable expenditure has been involved, justified, however, by the removal of a danger to the public and of interruptions to the traffic on both the roads and the railways.
Where, as at a double-line junction, one pair of rails crosses another pair, " diamond " crossings (p) are formed.
This may be rectangular in shape (" straight " shed), containing a series of parallel tracks on which the engines stand and which are reached by means of points and crossings diverging from a main track outside; or it may take a polygonal or circular form (round house or rotunda), the lines for the engines radiating from a turn-table which occupies the centre and can be rotated so as to serve any of the radiating lines.
Again, low speeds, light stock, less stringent requirements as to continuous brakes, signals, block-working and interlocking, road-crossings, stations, &c., tend to cheapness in working.
In regard to fencing and precautions at level-crossings, less rigid requirements may be enforced than with standard railways; and in some cases where trains are likely to be few, it has been provided that the normal position of the gates at crossings shall be across the line.
In 1919 the city's outstanding bonds amounted to $19,884,000, to which in 1920 was added $5,500,000 for removal of railway grade crossings, for a municipal farm to afford better treatment of the tubercular and insane, for new engine houses and reconstruction of streets and for municipal lighting equipment.
According to their own annals and traditions they once inhabited southern China, a theory which is confirmed by many of their habits and physical characteristics; the race has, however, been modified by crossings with the Chams and other of the previous inhabitants of Indo-China.
But this control does not meet the problem of actually lessening the number of vehicles in the main arteries of traffic. At such crossings as that of the Strand and Wellington Street, Ludgate Circus and south of the Thames, the Elephant and Castle, as also in the narrow streets of the City, congestion is often exceedingly severe, and is aggravated when any main street is under repair, and diversion of traffic through narrow side streets becomes necessary.
Other passes across this important water-divide are the Shandur (12,250 ft.), between Gilgit and Mastuj; the Lowarai (10,450 ft.), between the Panjkora and Chitral valleys; and farther south certain lower crossings which once formed part of the great highway between Kabul and India.
Crossings of railways and highways,' and in 1894 the commonwealth began the construction and maintenance of state highways.2 Since 1885, in Boston, and since 1894, in Fall River, the administration of the city police departments, including the granting of liquor licences, has been in the hands of state commissioners (one commissioner in Boston, a board in Fall River) appointed by the governor.
The debt of the state (especially the contingent debt, secured by sinking funds) has been steadily rising since 1888, and especially since 1896, chiefly owing to the erection of important public buildings, the construction of state highways and metropolitan park roadways, the improvement of Boston harbour, the abolition of grade crossings on railways, and the expenses incurred for the Spanish-American War of 1898.
Nevertheless, owing to the fact that nearly all the longer and more important crossings of Tibet and its northern montane region have been made from north to south, or vice versa, that is, transversely across the ranges, and comparatively few from east to west along the intermont latitudinal valleys, the identifications between ranges in the east and ranges in the west are in more than one instance more or less doubtful.
The Micronesians then are probably of Malay stock much modified by early Polynesian crossings, and probably, within historic times, by Papuan and even Japanese and Chinese migrations.
On crossings is not infrequent.
The Solomon islanders are of Melanesian (Papuan) stock, though in different parts of the group they vary considerably in their physical characteristics, in some islands approaching the pure Papuan, in some showing Polynesian crossings and in others resembling the Malays.
He made crossings of the lofty Arka Tagh and other parallel ranges to the south (running east and west).
It is used extensively for objects which require both hardness and ductility, such as rock-crushing machinery, railway crossings, mine-car wheels and safes.
The Assam Indigenous, in its two sub-races of Singlo and Bazalona, and the Manipur, originally found wild in the jungles of the native state of that name, have, with various intermixtures and crossings, been used to cover the greatest areas of all the more modern planting in India, Ceylon and Java.
In the northern peninsula are found people of Papuan type, probably representing the aborigines, and a tribe around Galela, who are Polynesian in physique, possibly remnants, much mixed by subsequent crossings with the Papuan indigenes, of the Caucasian hordes emigrating in prehistoric times across the Pacific. M.
The roads are rough and at times almost impassable, 'however, and the river crossings difficult and dangerous.
It is situated at one of the most important crossings of the Euphrates, where there was, in ancient times, a bridge of boats, and is now a ferry on the road from Aleppo to Urfa, Diarbekr and Mosul.
The Isthmus of Panama, coextensive with the republic, is the whole neck of land between the American continents; in another use the term " Isthmus of Panama " is applied to the narrow crossing between the cities of Colon and Panama, the other narrow crossings, further east, being the Isthmus of San Blas (31 m.) and the Isthmus of Darien (46 m.).
In all these establishments, after two or three crossings of the mare and ass, the breeders cause the mare to be put to a horse; yet a pure-bred foal has never been produced resembling either an ass or a mule."
Crossings are inevitable adjuncts of points.
Only in the highest spheres did all these schemes, crossings, and interminglings appear to be a true reflection of what had to happen.
In the first ten years of attempting to make better hybrids, Borlaug's group made more than six thousand crossings of wheat.