The driver was, of course, cutting the tips of the corners between the hexagonal blocks in a die-true line of flight and naturally paying no attention to the zigzag road below them. Since the spacecraft were all standing in the center of their particular blocks, like a bunch of chessmen parked on a tile floor, there was plenty of space between the ships themselves for such passage. Even at their thirty-foot altitude, which raised them to a point on most ships where the bowed-out flanks were quite wide, there was room to spare.
And now that they were in one of the aisles, distant buildings could be seen dead ahead. It must have been ten miles from their landing block to the edge of the spaceport.
The driver barreled along this aisle with the self-assurance of any taxi-driver, hooting his horn now and then as they came to what seemed to be a major intersection of the zigzag road below. Dusty wondered worriedly what happened when two of these characters met in a draw, because the man seemed to pay no attention to any other noise but his own, which he made with great confidence, in the other guy.
Dusty was beginning to wonder about the need for any road below when his question was answered by a caravan of heavy trucks making their way along the road. They zipped over the caravan and were gone by the time Dusty realized that air-travel was not for heavy cargo.
The buildings at the end of the aisle between the spacecraft loomed larger. The driver whipped along at his thirty-foot altitude, making no attempt to climb over the buildings which were growing taller and more massive at a frightening rate. Dusty's palms went wet; the buildings had seemed minute when they turned into the aisle, but now they were tall and massive and millions and millions of windows could be seen, with magnificent arches between the buildings spanning the gaps.
The aircab whipped across an empty perimeter about the hexagonal-pattern of landing blocks, sped above a low building, and howled into the tiny space between two buildings with an arch above and a roof below, and then went into a flat climb. The car rose slowly in the canyon between the buildings that lined the street below. There were people working in those buildings, men and women that sat at their desks behind windows and paid no attention to the passage of a hundred-mile-per-hour skycab within forty feet of them.
Then the car was above the roof-level but it kept to the street-lanes. Below them were the streets, and in the valley was slow-moving traffic, ground cars and air-cars that ran at different levels to avoid intersection-collisions. Up in the higher strata were the fast-moving aircabs, each moving in its lane, and each lane for a different direction. Even with separate lanes the traffic was a turmoil; constant jockeying to gain position, to avoid trouble, to move a level higher or a level lower so that a corner could be turned without entering the intersection at the wrong level.
To make a right turn the driver jockeyed himself to the top of the altitude allowed that line of traffic, and in the block before his turn he rose above his lane, made his turn, and then entered the right-bound traffic pattern from below, mingling with the speeding aircabs. To make a left turn, the driver dropped to the floor of his lane, fell below, made his turn, and mingled with the left-bound turmoil from above their upper limit of altitude.
They raced along in the middle-altitude at high speed; cars above them, below them, to the left and right, before and behind.