less concrete, more ground to soak up in the top one.
ease of repairs and modifications
no
sustainable drainage makes the land fertile. at the same time, it prevents the water from flooding. in a conventional system, water is directed to either the sea or other rivers.
i don't know how to explain the details.
conventional drainage systems reuse this water for farming or reprocess it into rivers. sustainable water systems are most harmful to human society, animals, and also bacteria.
no idea...
i used to have a 20-stall barn that i leased, and through that experience, i learned a lot about what i would want if/when i built my own. i never did; i have always had to make do or make changes in an already existing facility. it had automatic waterers (heated) in the stalls, half of the barn was built against a hill, so that on one side, half of the barn was underground. the whole area above the stalls was for hay storage, to be dropped down into the feeders in the stalls. speaking of the stalls, way down under the stalls were railroad ties, then 18 inches of sand on that, shavings needless to say, the stalls never got wet. we picked the stalls twice a day, and the barn smelled like shavings and clean horses all the time. now, the waterers were always a headache, and you never knew if a horse was drinking or not, and if there was ever a short in one of the waterers, and a horse got shocked even one time, he would never go back and drink from it. so i turned off all of the waterers and hung buckets in the stalls and pulled a hose down the aisle to fill them. still the best way, more work, but you can keep track of what is going on with your horse. oh yes, the overhead hay storage was a dusty headache; it also made the barn hotter when the loft was full and impaired the circulation, even though there were several vents. i would try not to even let anyone up there while there were horses still in the stalls because of the dust that was created by walking in the loft. one thing that i did appreciate was that half of the barn was against the dirt; even in the summer, it was cool in the barn. i also consider it important to have a solid window in every stall that opens wide enough for the horse to comfortably get his head out. there are lots of reasons for this, not to mention the fresh air, but it lessens the boredom, which in turn lessens the weaving, cribbing, and kicking the stalls. i like concrete for the wash rack and alley, and it should be wide enough that horses can be tied on either side and still be groomed. also, if the wash stall has a window, just like the stall window, your horses will walk in much easier because they can see out and don't feel like they are going into a dead end; you can always close it when you get your horse tied. of course, you will want a hot water heater just for the wash rack. if money isn't an issue, a small bathroom is a must, and well-planned, locked tack rooms i always dreamed of having, within the large tack rooms, partitions for each individual's tack that they could lock up and know that their stuff would never be used or touched by anyone else while they were gone. keep in mind, everyone that boarded there wasn't family, so that was a big issue that had to be addressed on a regular basis. boy, i could go on and on; i guess i already have. no, i don't like mats; i have tried them, would rather have good drainage with shavings. i personally don't like cross ties, but every stable has them and uses them, and most of the time, successfully, but then there is always the horse that just flips for no reason, and you have to haul them off seriously. i would prefer individual places in front of the stall meant for tying, along with a blanket bar out of reach of where the horse can't chew. oh yeah, a doctoring/clipping chute somewhere in an out-of-the-way but well-lit area. i guess i'd better stop; we all have lots of ideas. hope this helps a little, and one more thing, you never have too many lights with convenient places for switches.
sustainable: advantages: it slows the water flow. creates green space for vegetation (absorbing co2), supporting animal and plant life, and enhancing biodiversity. it looks nice :-) and allows for recreational use. disadvantages: it takes up more space. to some, it may appear green and wild, which may not be pleasing.
the sustainable system would combine well with recreational areas. the conventional system needs less space to operate and is better for removing sewage.
sustainable drainage is probably much more expensive, but that's okay - as long as it makes the city more beautiful at the same time! we can use these green spots when we play with our children and want to eat outdoors. but at the same time, you doubt that they work as well as conventional drainage.
green areas are more reliable in the long run.
suds are effective for small to medium storms, but additional measures are required when suds are insufficient. conventional systems are also necessary for wastewater management.
sustainable systems produce cleaner water, slow down discharges, offer opportunities for children to play, are aesthetic, etc. many more aspects are unlocked and become values.
the sustainable drainage system looks better, is more natural, and visible water storage prevents the need for large storage basins.
sustainable drainage:
- water is actively used to create beautiful parks, etc., instead of being concealed in expensive pipes.
- the possibility of passive cleaning of polluted water from roads (through infiltration, sedimentation in lakes, uptake by plants, etc.)
- cheaper to implement in existing cities.
conventional drainage:
- water carrying pollution is kept away from people.
- more control of the water - easier to calculate/model the water in the sewerage system.
sustainable will also help improve things like air temperature, recreational value, health of the citizen, and so on. the other one is hidden away.
more aesthetic
sustainable is more expensive but looks better and is better for the environment.
as mentioned above, the sustainable system has other benefits such as aesthetics, cleaning of runoff water, reducing peak flows, and creating green spaces (possibly helping to reduce co2).
the other one directs the water to a specific place, which is also a benefit, so the water is more under control. additionally, it can be diverted away more quickly.
i think they have to be combined. they can't exist alone; there is simply too much water, and there is not enough space in cities to only rely on infiltration devices.
the sustainable one looks prettier than the conventional. i would think that the sustainable requires more space than the conventional.
sustainable drainage: allows infiltration to the groundwater and looks nice.
conventional drainage: directs excess water to a treatment plant, which is beneficial in the case of polluted urban/road runoff. it is easier to design for heavy rain events.
- need for space
- good looking in the local environment
- limited access to the public e.g. playing kids
- storage possibilities when big rainfalls occur
a sustainable system is greener and cleaner.
the sustainable system is better suited to fluctuations in precipitation levels. conventional systems are designed for a maximum load that may be exceeded, leading to floods. moreover, the conventional system poses significant challenges for wastewater treatment plants that must adapt to these fluctuations. the sustainable system acts as a buffer—both for flooding and for the volume of wastewater that treatment plants must handle.
the green areas that function as a sustainable drainage system also create better living environments in cities.
sustainable will provide a long-term solution for both the water problem and it will be good for the environment, plus it looks good. the conventional is cheap.
it provides the most recreational value and, on top of that, helps in the fight against global warming through co2 fixation in plantations.
the benefit of sustainable drainage is that you might be able to re-use the water (as groundwater) due to the natural filtration of hazardous components.
sustainable drainage utilizes rainwater, allowing for the creation of more interesting and greener urban areas.
sustainable is cheaper and better for the environment. conventional is a well-known technology.
more beautiful, integrated into a natural environment.