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Development repository for DIGGS Schema Files. The latest updates are found here.
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Update Codelist:classificationCode #10

Open nickmachairas opened 5 years ago

nickmachairas commented 5 years ago

We are seeking comments/recommendations on updating the lithology codelist as shown below. This post is also kicking off the Codelist Updates project page where we will be keeping track of the development process.

diggs:Lithology/diggs:classificationCode

Code Name Description Data type UOMType Authority
SP-SM Poorly-graded sand with silt Poorly-graded sand with silt     USCS
GW-GC Well-graded gravel with clay (or silty clay) Well-graded gravel with clay (or silty clay)     USCS
CL Lean clay Lean clay     USCS
GP-GM Poorly-graded gravel with silt Poorly-graded gravel with silt     USCS
CH Fat clay Fat clay     USCS
GC Clayey gravel Clayey gravel     USCS
GM Silty gravel Silty gravel     USCS
GP-GC Poorly-graded gravel with clay (or silty clay) Poorly-graded gravel with clay (or silty clay)     USCS
CL-ML Silty clay Silty clay     USCS
SP-SC Poorly-graded sand with clay Poorly-graded sand with clay     USCS
GW-GM Well-graded gravel with silt Well-graded gravel with silt     USCS
GP Poorly-graded gravel Poorly-graded gravel     USCS
SW-SM Well-graded sand with silt Well-graded sand with silt     USCS
SW Well-graded sand Well-graded sand     USCS
GC-GM Silty, clayey gravel Silty, clayey gravel     USCS
GW Well-graded gravel Well-graded gravel     USCS
ML Silt Silt     USCS
OH Organic clay Organic clay     USCS
SC-SM Silty, clayey sand Silty, clayey sand     USCS
MH Elastic silt Elastic silt     USCS
SC Clayey sand Clayey sand     USCS
OL Organic clay Organic clay     USCS
SM Silty sand Silty sand     USCS
SW-SC Well-graded sand with clay Well-graded sand with clay     USCS
SP Poorly-graded sand Poorly-graded sand     USCS
LFS Loamy fine sand Loamy fine sand     USDA
SIC Silty clay Silty clay     USDA
COS Coarse sand Coarse sand     USDA
LFS Loam Loam     USDA
LCOS Loamy coarse sand Loamy coarse sand     USDA
SC_ Sandy clay Sandy clay     USDA
CL_ Clay loam Clay loam     USDA
SL Sandy loam Sandy loam     USDA
COSL Coarse sandy loam Coarse sandy loam     USDA
S Sand Sand     USDA
VFS Very fine sand Very fine sand     USDA
FS Fine sand Fine sand     USDA
LS Loamy sand Loamy sand     USDA
SICL Silty clay loam Silty clay loam     USDA
SCL Sandy clay loam Sandy clay loam     USDA
FSL Fine sandy loam Fine sandy loam     USDA
VFSL Very fine sandy loam Very fine sandy loam     USDA
SIL Silt loam Silt loam     USDA
LVFS Loamy very fine sand Loamy very fine sand     USDA
SI Silt Silt     USDA
A-1-a Gravel and/or stone fragments Gravel and/or stone fragments     AASHTO
A-1-b Gravel and/or stone fragments with sand Gravel and/or stone fragments with sand     AASHTO
A-3 Fine sand Fine sand     AASHTO
A-3-a Coarse and fine sand Coarse and fine sand     ODOT
A-2-4 Gravel and/or stone fragments with sand and silt Gravel and/or stone fragments with sand and silt     AASHTO
A-2-5 Gravel and/or stone fragments with sand and silt Gravel and/or stone fragments with sand and silt     AASHTO
A-2-6 Gravel and/or stone fragments with sand, silt and clay Gravel and/or stone fragments with sand, silt and clay     AASHTO
A-2-7 Gravel and/or stone fragments with sand, silt and clay Gravel and/or stone fragments with sand, silt and clay     AASHTO
A-4 Silty soils Silty soils     AASHTO
A-4-a Sandy silt Sandy silt     ODOT
A-4-b Silt Silt     ODOT
A-5 Elastic silt and clay Elastic silt and clay     AASHTO
A-6 Clayey soils Clayey soils     AASHTO
A-6-a Silt and clay Silt and clay     ODOT
A-6-b Silty clay Silty clay     ODOT
A-7-5 Elastic clay Elastic clay     AASHTO
A-7-6 Clay Clay     AASHTO
A-8 Organic soils Organic soils     AASHTO
A-8-a Organic silt Organic silt     ODOT
A-8-b Organic clay Organic clay     ODOT
sod_and_topsoil Sod and topsoil Sod and topsoil     ODOT
pavement_or_base Pavement or base Pavement or base     ODOT
uncontrolled_fill Uncontrolled fill Uncontrolled fill     ODOT
bouldery_zone Bouldery zone Bouldery zone     ODOT
peat Peat Peat     ODOT
AC107 commented 5 years ago

This looks like a good starting point. If there are other classification systems or if someone notes a problem with one of these, please provide a comment so that the committee can review this codelist and make appropriate modifications.

AC107 commented 5 years ago

Should we change the name from Update:lithology to Update Codelist:classificationCode or just Update:classificationCode if it’s in some sort of group of all codelists?

I think the lithology may be confusing? May be a lot of codelists related to lithology (rock type, geoelogy?)

Rogerchandler commented 5 years ago

The AGS in the UK has a list for lithology here http://www.agsdataformat.com/User/pickv4.php?abbr=GEOL_LEG (requires login to website which is free). I won't add them to the list above I don't think they will "merge together" well as the UK and US have different views on classification systems. But this may be of interest to others. If the AGS adopt DIGGS then they will link to their list rather for the UK rather than trying to come up with a list for worldwide usage.

AC107 commented 5 years ago

Roger, you make a good point here. Any user or entity can link their own lists and for AGS this may be the best approach. We should focus on this being a good general list for those that do not have their own definitions already defined and those that are already using systems similar or common to those used in the US as reflected here.

sdeaton75 commented 5 years ago

I believe our Authority needs to be more specific. USCS could be field classification vs lab classification. They are fundamentally similar but different systems. They have all of the same USCS symbols except the lab classification has a CL-ML classification. So, we could duplicate all the codes except CL-ML and then have 2 different Authorities, ASTM D2487 and ASTM D2488.

AC107 commented 5 years ago

As we were discussing on the DIGGS call this am... should the "Code" require an "Authority"? issues such as USCS CL (Lean Clay) and USDA CL (Clayey Loam). If we required the Authority, we would not have to have CL and CL

AC107 commented 5 years ago

Will it be confusing or incorrect if you have to jump between ODOT and AASHTO fro various classifications? A-6.. A-6a and A-6b . (I should also do some research on how they tell between silt and clay and silty clay) Is authority a required field?

sdeaton75 commented 5 years ago

Yes - I believe it is confusing and potentially misleading. It causes problems for users, software developers, etc. If all 50 state DOTs decide to disregard the standards then there is little point in having the standard in the first place other than for commercial work, which then means you still have the tail wagging the dog (e.g. DOT's dictating a different way of doing things similar to the problem you have with DOT's mandating gINT project files must be provided which requires consultants to change their process for each DOT).

There is a reason why there are ASTM standards and AASHTO standards, Individual states doing their own thing is problematic and lessens the value of the data, and potentially provides misleading data in scenarios where people do not know that ODOT's classification system is different than MODOT's classification which is different than LADOT, etc. This also means that doing any data mining is unreliable because the differences in classification using these systems.