Did you mean: connection concession ?
| 拥挤 | yōng jǐ | crowded / to throng / congestion | 
| 交通拥挤 | jiāo tōng yōng jǐ | traffic congestion | 
| 交通堵塞 | jiāo tōng dǔ sè | road congestion; traffic jam | 
| 充血 | chōng xuè | hyperemia (increase in blood flow) / blood congestion | 
| 添堵 | tiān dǔ | to make people feel even more stressed or annoyed (coll.) / to make traffic congestion even worse | 
| 拥堵 | yōng dǔ | (of traffic) to become congested / congestion | 
| 堵塞费 | dǔ sè fèi | traffic congestion fee | 
| 充塞 | chōng sè | congestion / to block / to congest / to crowd / to choke / to cram / to fill up / to stuff / to take up all the space |