I am using Railcraft 10.2.0 on Minecraft 1.10.2. The game starts successfully. But when I put a signal lamp on the ground, the game crashes.
Here is my crash report:

crash-2017-10-01_18.19.14-client.txt

This is caused by Optifine breaking API stuff.

I removed the Optifine and everything is ok now. Thanks!

建议升级optifine，如果继续崩溃到 https://github.com/sp614x/optifine/issues/new 汇报

升级了Optifine之后也没有问题了，谢谢！@liach