# Relationship with former releases
The current CSUR system succeeds the previous CSUR road pack in 2018 and the even earlier CSUE road pack in 2017. Substantial improvements have been made compared with these older road packs. All assets in the former releases ('18 CSUR and CSUE) were handcrafted piece by piece so their names were not as standardized as our current version. However, they still followed a consistent lane numbering scheme, which eases the connection and inter-conversion between the old versions and the new CSUR. Below is a list of corresponding lane numbers in the current and former versions of CSUR. n denotes the number of lanes in the module.
| CSUR(2018) and CSUE | CSUR (2019) |
|---|---|
| nR4 | nR2 |
| nR5 | nR3 |
| nR5P | nR3P |
| nR6 | nR4P |
| nR7 | nR5P |
| nR9 | nR7 |
A complete reference table containing the standardized CSUR names for former road assets is given in the next paragraph. You may find it useful if you have been playing the former CSUR/CSUE and would like to switch to the new version.
# CSUR road name comparison table of different versions
| Asset | CSUR (2018), CSUE | CSUR(2019) | Included | Note |
|---|---|---|---|---|
 | CSUR St 2DR 16m | CSUR 2DR | ✔️ | |
 | CSUR St2 2DR | CSUR-S 2DC=2DR | ✔️ | |
 | CSUR St 2 1R4 Out | CSUR-T 2DC=3DS, CSUR-R 3DS=2DC1R2 | ❌ | Use 2 modules in new CSUR |
 | CSUR Shift 1R=1R4 | CSUR-S 1R=1R2 | ✔️ | |
 | CSUR Shift 1R4=1R | CSUR-S 1R2=1R | ✔️ | |
 | CSUR Trans 1R4 | CSUR 1R2 | ✔️ | |
 | CSUR Trans 1R | CSUR 1R | ✔️ | |
 | CSUR St 2 1R4 IN | CSUR-T 2DC=4DC, CSUR-R 4DC=2DC2DR2 | ❌ | Use 2 modules in new CSUR |
 | CSUR St 2 + 1R4 Both Side | CSUR-R 2DC1R2=3DS, CSUR-T 3DS=2DC | ❌ | Use 2 modules in new CSUR |
 | CSUR St. 2Lane 16m | CSUR 2DC | ✔️ | |
 | CSUCSUR 6D-R_Wide | CSUR 6DR | ✔️ | |
 | 6D-R 32m | CSUR 6DR | ✔️ | |
 | CSUR St 2 Lite | CSUR 2DC | ✔️ | |
 | CSUR Asym 1+2 | CSUR 3DC | ✔️ | |
 | CSUR St 4DC Wide | CSUR 4DC | ✔️ | |
 | CSUR St 4DC | CSUR 4DC | ✔️ | |
 | CSUR Ramp 8DR242 | CSUR-R 8DR=4DR4DR4P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Trans 2R6 | CSUR 2R4P | ✔️ | |
 | CSUR St 8DR | CSUR 8DR | ✔️ | |
 | CSUR Expand 2R6 | CSUR 4DR4P=6DR4P | ✔️ | |
 | CSUR St 6DR Reset | CSUR 6DR | ✔️ | |
 | CSUR 4DR Reset | CSUR 4DR | ✔️ | |
 | CSUR Shift 2R52R6 | CSUR-S 2R3=2R4P | ✔️ | |
 | CSUR Shift 2R62R5 | CSUR-S 2R4P=2R3 | ✔️ | |
 | CSUE EX-5R Shift 2R=2R5 | CSUR-S 2R=2R3 | ✔️ | |
 | CSUE EX-5R Shift 2R5=2R | CSUR-S 2R3=2R | ✔️ | |
 | CSUR Trans 2R5 | CSUR 2R3 | ✔️ | |
 | CSUR Mt 4DR5 | CSUR 4DR3 | ✔️ | |
 | CSUR Sep 222 | CSUR 2DC4DR3 | ✔️ | |
 | CSUR Ave 12DR9 72m | CSUR 12DR7 | ✔️ | |
 | CSUR MT 6DR6 | CSUR 6DR4P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 72m212 | CSUR-R 12DR7 = 4DR3 2DR4P 4DR7 | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 6DR222 | CSUR-R 6DR=2DC4DR3 | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 1R51R6=2R6 | CSUR-R 1R31R4P=2R4P | ✔️ | |
 | CSUR Ramp 2R6=1R51R6 | CSUR 2R4P=1R31R4P | ✔️ | |
 | CSUR Trans 1R6 | CSUR 1R4P | ✔️ | |
 | CSUR Ramp 8DR161 | CSUR-R 8DR=6DR2DR4P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Shift 1R5=1R6 | CSUR-S 1R3=1R4P | ✔️ | |
 | CSUR Shift 1R6=1R5 | CSUR-S 1R4P=1R3 | ✔️ | |
 | CSUR Ave 10DR7 | CSUR 6DR4DR5P | ✔️ | |
 | CSUR Expand 6DR=8DR | CSUR-T 6DR=8DR | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 72m122 | CSUR-R 12DR7 = 2DR3 4DR4P 4DR7 | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 72m221 | CSUR-R 12DR7 = 4DR3 4DR5P 2DR7 | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 8D262 | CSUR-R 8DR=6DR4DR5P | ❌ | Can be created as a custom module |
 | CSUR Trans 2R7 | CSUR 2R5P | ✔️ | |
 | CSUR Exp 1R6=2R6 | CSUR-T 1R4P=2R4P | ✔️ | |
 | CSUR Exp 2R6=1R6 | CSUR-T 2R4P=1R4P | ✔️ | |
 | CSUR MT 8DR7 | CSUR 4DR34DR5P | ✔️ | |
 | CSUR St 8DR6 | CSUR 4DR4DR4P | ✔️ | |
 | CSUR Ramp 6DR | CSUR-R 6DR=4DR2DR3P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Trans 1R5P | CSUR 1R3P | ✔️ | |
 | CSUR St 8DR13 | CSUR 6DR2DR4P | ✔️ | |
 | CSUR Int 8DR6 | CSUR-R 6DR2DR4P=4DR4DR4P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ext 64m24 | CSUR-T 4DR5P=8DR5P | ✔️ | |
 | CSUR Ramp 10DR211 | CSUR-R 10DR = 4DR 2DR3P 2DR5 | ✔️ | Use one-way modules in new CSUR |
 | CSUR St 10DR | CSUR 10DR | ✔️ | |
 | CSUR Exp 1R5P=2R6 | CSUR-T 1R3P=2R4P | ✔️ | |
 | CSUR Exp 2R6=1R5P | CSUR-T 2R4P=1R3P | ✔️ | |
 | CSUR LT 8DR7 | CSUR 8DR5P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ext 64m34 | CSUR-T 6DR5P=8DR5P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Trans 4R7 | CSUR 4R5P | ✔️ | |
 | CSUR Ramp 4R722 Off | CSUR-R 4R5P=2R32R5P | ✔️ | |
 | CSUR Ramp 4R722 On | CSUR-R 2R32R5P=4R5P | ✔️ | |
 | CSUR Trans 3R7 | CSUR 3R5P | ✔️ | |
 | CSUR Exp 3R7=4R7 | CSUR-T 3R5P=4R5P | ✔️ | |
 | CSUR Exp 4R7=3R7 | CSUR-T 4R5P=3R5P | ✔️ | |
 | CSUR Int 10DR23 | CSUR-R 4DR6DR5P=6DR4DR5P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ramp 10DR343 | CSUR-R 10DR=4DR6DR5P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Shift 2R62R7 | CSUR-S 2R4P=2R5P | ✔️ | |
 | CSUR Shift 2R72R6 | CSUR-S 2R5P=2R4P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Juc 6DR6 | CSUR-R 6DR4P=3R4P-5R4P | ❌ | |
 | CSUR Int 10DR7 | CSUR-R 8DR2DR5P=6DR4DR5P | ✔️ | Use one-way modules in new CSUR |
 | CSUR Ave 10DR41 | CSUR 8DR2DR5P | ✔️ | |
 | CSUR Asym 24R5 | CSUR 2R3-4R3 | ✔️ | |
 | CSUR 2DC Reset | CSUR 2DC | ✔️ | Use |
 | CSUR Ramp 10DR262 | CSUR-R 10DR=6DR4DR5P | ✔️ | Use one-way modules in new CSUR |