Apologies for the typed nature of the quotes, but the computer I'm on isn't letting me do screen shots for some reason.
The former head of the Railway Bureau had told him in November 1913, and Conrad had repeated to the Common Ministerial Council on 7 July, that the mobilisation plan could be switched up to the fifth day of mobilisation. In the summer of 1914, this was 1 August.
Conrad’s shock is thus easy to imagine when, on the evening of 31 July, his attempt to change the deployment to ‘War Case B + R’ was firmly rejected by the War Ministry’s new Transport Chief, General Staff Colonel Johann Straub, who warned that any such attempt would cause ‘chaos on the railway lines’. The most that could be done, Conrad was told, was to return the transports destined for the Balkans to their bases, and restart the whole deployment.
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In fact, this mistake mattered a great deal. Austria-Hungary did not have sufficient locomotives to carry B-Echelon to the Balkans and A-Echelon to Galicia simultaneously, so general mobilisation, although announced on 31 July, could begin only on 4 August.
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Conrad, with assistance from his military rail experts in Vienna and Potiorek in Bosnia, had this squandered any opportunity to keep pace with the Russian mobilisation and, without gaining any advantage elsewhere, had weakened his already inadequate force in Galicia, the Empire’s most important theatre of war.
Ring of Steel: Germany and Austria-Hungary at War, 1914-1918. Alexander Watson.
Conrad hints, in his memoirs – and other writers have gone further – that the railway-technicians had behaved incompetently. This was unfair: the railway-technicians had simply behaved according to a plan that Conrad had prescribed for them. II Army did, in fact arrive in Galicia on schedule – about the 24th day of mobilisation – although with a few exceptions that had nothing to do with the technicians. On the other hand, the technicians failed in do far as they did not respond to the crisis with any imagination. A more rapid despatch of II Army could, probably, have been attained. But the technicians behaved with incurable routine-mindedness, impenetrable smugness. … They acted according to out-of-date ideas of what the railways could do. No military train had more than fifty carriages, the lines’ capacity being supposedly capable of only this. In practice, the great Nordbahn from Vienna to the north and Cracow usually took a hundred-waggon trains. The military failed to use with any intensity the line between Budapest and Przemyśl, supposing it to be a poor, mountain railway, not a double-tracked line capable of taking quite fast and heavy trains on most sections. … Moreover, troop-trains were arbitrarily halted for six hours every day for ‘feeding-pauses’, despite their having field-kitchens with them in the trains. Since stations with the necessary equipment did not regularly occur on the lines, this meant that troops would travel for hours without being fed, then to be given two square meals, more or less in succession, in the middle of the night.
The Eastern Front 1914-1917, Norman Stone.
Emphasis in both quotes my own.