# Producing emissions data attributes for road segments from C-LINE?

**URL:** https://forum.cmascenter.org/t/producing-emissions-data-attributes-for-road-segments-from-c-line/3257
**Category:** C-LINE
**Tags:** emissions
**Created:** [May 17, 2022, 7:37pm UTC](https://forum.cmascenter.org/t/producing-emissions-data-attributes-for-road-segments-from-c-line/3257 "2022-05-17T19:37:52Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![jwilson](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.cmascenter.org/jwilson/32/2297_2.png) [@jwilson](https://forum.cmascenter.org/u/jwilson)
#### Post date: [May 17, 2022, 7:37pm UTC](https://forum.cmascenter.org/t/producing-emissions-data-attributes-for-road-segments-from-c-line/3257/1 "2022-05-17T19:37:52Z")

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As the subject says. Wondering if there is a viable way to derive road segment level emissions data attributes from the C-LINE tool. At the moment, the only apparent output is at the census tract level. We are hoping to track how much emissions are coming from each individual road segment.

Thanks in advance!

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### Author: ![cseppan](https://avatars.discourse-cdn.com/v4/letter/c/6de8d8/32.png) [@cseppan](https://forum.cmascenter.org/u/cseppan)
#### Post date: [May 19, 2022, 8:48pm UTC](https://forum.cmascenter.org/t/producing-emissions-data-attributes-for-road-segments-from-c-line/3257/2 "2022-05-19T20:48:02Z")

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Unfortunately, the road emissions modeled by C-LINE are calculated internal to the dispersion model and aren’t available as output values.