The elevator industry has undergone a quiet revolution in recent decades. In the past, installing elevators in any building was an inherently expensive and intrusive process, even to the extent that these obstacles were often considered an important reason for preferring shorter structures. That has changed greatly thanks to the introduction of modular building techniques, though, much to the benefit of all involved.
Previously, having an elevator installed meant either designing an appropriate shaft for a future building or doing some extremely tricky retrofitting of an older one. Every such project involved a lot of painstaking, custom work, because all of the other factors that go into making a building safe and sturdy had to be accounted for.
As this website describes, though, that all changed with the introduction of modular design and installation techniques. Instead of creating ad-hoc elevator housings on a case by case basis, those who use these techniques rely on ready-made, consistent parts that bring known, reliable capabilities to every project.
That makes a big difference in many ways. To begin with, a modular elevator with hydraulics is almost invariably far less expensive than a traditional one, for a number of reasons. First, the off-site, factory-based manufacturing of so much of the elevator's structure brings labor costs down, while increasing reliability and repeatability. Second, a modular elevator can contribute much more in the way of structural support to a building than a traditional one, helping to lower material and labor costs further.
Finally, actually installing a modular elevator is far simpler and easier than working with a traditional one. In fact, modular elevators often imply quite a bit less in the way of long-term maintenance costs, too, further increasing their cost-effectiveness.
Simpler, more reliable, and less expensive, then, modular elevators clearly have a lot to offer. While not every project will accommodate an elevator of this kind, enough do that they are becoming increasingly common. Some of those who closely observe the industry, in fact, figure that they will account for a majority of new installations before long, a development that will likely help to save even more money all around the world.